---
product_id: 363994140
title: "OASE Indoor Aquatics Biomaster Thermo 600"
brand: "oase"
price: "795297 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Oase"
url: https://www.desertcart.hu/products/363994140-oase-indoor-aquatics-biomaster-thermo-600
store_origin: HU
region: Hungary
---

# 4-stage filtration for crystal-clear water Ultra-quiet operation for peaceful ambiance Integrated heater for precise temp control OASE Indoor Aquatics Biomaster Thermo 600

**Brand:** oase
**Price:** 795297 Ft
**Availability:** ✅ In Stock

## Summary

> 🔥💧 Quiet power meets sleek design — your aquarium’s new best friend!

## Quick Answers

- **What is this?** OASE Indoor Aquatics Biomaster Thermo 600 by oase
- **How much does it cost?** 795297 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/363994140-oase-indoor-aquatics-biomaster-thermo-600)

## Best For

- oase enthusiasts

## Why This Product

- Trusted oase brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** Easy-clean pre-filter module extends filter life and saves time
- • **Whisper-Quiet Performance:** Operate your aquarium without disruptive noise
- • **Seamless Aquarium Elegance:** Integrated heater + filter = more visible aquatic beauty
- • **Quad-Action Water Purification:** Biological, mechanical, chemical & prefiltration in one compact unit
- • **Customizable Flow & Oxygenation:** Adjust inlet/outlet flow + diffuser for optimal water quality

## Overview

The OASE Indoor Aquatics Biomaster Thermo 600 is a premium external aquarium filter with an integrated 323W heater, delivering precise and uniform temperature control. Featuring a 4-stage filtration system—biological, mechanical, chemical, and prefiltration—it ensures crystal-clear water and optimal aquatic health. Designed for quiet operation and easy maintenance, it includes adjustable flow controls, a diffuser for enhanced oxygenation, and a removable pre-filter module. Compact and energy-efficient, it’s perfect for marine and freshwater tanks up to 90 gallons, backed by a 3-year warranty plus a 1-year online extension.

## Description

The biomaster Thermo line of premium external filters with integrated heaters are perfect for marine and freshwater aquariums. The biomaster Thermo 600 boasts 4-stage filtration in a compact design. With the heater integrated into your filter, there is more room for undisrupted beauty in your aquarium. Biological, mechanical, chemical, and prefiltration all work together to provide your aquarium with optimal water quality and clarity. The biomaster filters are designed with sealed filtration pathways to ensure water flow is getting the full benefits of prefiltration, filter media for clearer water, hel-x biomedia provide a large suspended settlement surface for microorganisms, and activated carbon for ideal nutrient reduction and removal of toxins. The easy clean pre-filter module can be removed and cleaned separately from the rest of the filter for high efficiency and to extend the life of your filter. The water flow Can easily be adjusted on both the inlet and outlet adapters for the filter. Created for convenient placement under the aquarium. Add the included diffuser for uniform surface movement and provides additional dissolved oxygen to the water for ideal water quality. Features a N handle for simple moving and maintenance. This energy-efficient design includes a self-priming function for easy operation on startup and after cleaning. Includes a shut-off automation with built-in check valve to prevent leakage when cleaning the filter. This quiet operating filter is supported by an included 3 year warranty with a free 1 year warranty extension with online product to customize your pre-filter by combining coarse, Fine, ultra Fine, and activated carbon filter foams.

Review: The pre-filter and the built in heater both make this lightyears ahead of any other canister filter. So easy to maintain, and very quiet, other than the occasional air burp. Only criticism, is that the GPH is measurably lower than the spec indicates. I wouldn't use this for anything bigger than a 90 gallon aquarium despite what the packaging tells you. I didn't knock a star off for this, only because this is something that seems to be true of all filters.
Review: My thermal 600 has only been running for less then x2 days now and the difference in water clarity is amazing. The unit replaced a Eheim pro 3 as it was getting noisy at the impeller. I have always used canaster systems in my tank setups- E pro 2, 3 and 4+ thinking u get what u pay for - OASE changed that! I did make media changes using my ceramics and sintered glass bio balls instead of blue foam-watch Pimpmyfilter as this vid will explain this in great detail. OASE has made changes to the prefilter pickup tube (larger diameter) so no drilling required and comes with coarse sponges now-will experiment with 35ppi and 60ppi sponges and update flow results. My tank is fully planted 120g 2x2x4ft with very messy fish. The heater the 600 comes with is a 300w and currently has no problem keeping up at my flow settings at 25C. Nice you can easily replace or take out the heater without disassembly of pump-Oase provides plug or you buy the non thermal and want to change to a heater down the road. You can dial back the intake and output flows a little at the line- not the pump. Setup was a snap and filling was fantastic-x2 pumps to prime and all the air trapped was gone in seconds-this is a very quiet unit. This was a huge issue for me in all my previous canisters. Flow was good and strong wide open, only time will tell how long that lasts before some cleaning is required. This is the only unit I have owned where u can clean the prefilter without total disassembly at basket/pump top. Would have given x5 stars if there was different bio media offered other then just sponges for baskets- the output directional flapper is cheap-non directional up or down - spray bar (did not use) is in x2 sections with only x1 end cap. This is the the most expensive filter i have ever owned! Only time will tell if it was worth it. Comes with a possible x4 year warranty with the year extension. Will update with pictures down the road. Up date, changed out the pre filters to a Ppi 30 set. Huge difference in clarity but will slow down flow. Not sure how long before cleaning this set? Will be replacing the Pro4+ in the very near future. Update; Been a good month now, very clean inside as i had to wash prefilters, flow was reduced just a little. Changed prefilters from 30 ppi to 45 ppi and loaded 4L of matrix-last big change. Now need to wait x6 months-more to follow. Update; The 45ppi in pre filter needs to be cleaned 5-6 weeks or the flow will drop off effecting temp drop. Again very easy to do and get up a running again. Water is crystal clear now with o values all around. PH is stable a 7 to 7.1 all the time. Still will replace the Eheim early next year or if this unit ever goes on sale? Lol Will update again in x5 months when I open it up and light clean the trays and internal sponge in last tray. Hoping to be able to go a year and just work the 45ppi pre filter sponges every x5 to 6 weeks?? Now I have x2 keeping my flow rate to x4 or 5 volume turnover. Running a hot tank will require x2 thermals over 120gal.

## Features

- The Bio master thermos 600 has an integrated heater in compact filter design
- The built-in heater provides your aquarium with Precise and uniform temperature levels while the product integration delivers unobstructed views of your Aquarium
- External filter operates quietly to circulate and filter your aquarium water
- Includes 4-stage filtration: biological, mechanical, chemical, and prefiltration
- Hel-x, suspended filter media, creates the optimal surface area for beneficial bacteria growth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07LHFRR93 |
| Brand | OASE |
| Colour | Black |
| Country of Origin | USA |
| Efficiency | High |
| Generic Name | Filter |
| Global Trade Identification Number | 00706759551502 |
| Included Components | Aquarium Filter with heater, filter media, tubing, intake and outflow tubes, diffuser, spray bar, fittings, and power cable |
| Is Electric | Yes |
| Item Depth | 19 inches |
| Item Dimensions LxWxH | 23.9 x 23.9 x 48.3 Centimeters |
| Item Weight | 6 kg |
| Item model number | 55150 |
| Manufacture Year | 2023 |
| Manufacturer | OASE |
| Maximum Flow Rate | 350 Gallons Per Minute |
| Mounting Type | Floor |
| Net Quantity | 1 Count |
| Product Dimensions | 23.88 x 23.88 x 48.26 cm; 6 kg |
| Special Feature | Filtration |
| Style | Biomaster Thermo 600 |
| UPC | 706759551502 |
| Voltage | 120 Volts |
| Wattage | 323 Watts |

## Product Details

- **Brand:** OASE
- **Capacity:** 600 litres
- **Colour:** Black
- **Power Source:** Corded Electric
- **Special Feature:** Filtration

## Images

![OASE Indoor Aquatics Biomaster Thermo 600 - Image 1](https://m.media-amazon.com/images/I/41S8pn6Q9AL.jpg)
![OASE Indoor Aquatics Biomaster Thermo 600 - Image 2](https://m.media-amazon.com/images/I/41bO2k64jNL.jpg)
![OASE Indoor Aquatics Biomaster Thermo 600 - Image 3](https://m.media-amazon.com/images/I/41podHnYAqL.jpg)
![OASE Indoor Aquatics Biomaster Thermo 600 - Image 4](https://m.media-amazon.com/images/I/41rn095ocFL.jpg)
![OASE Indoor Aquatics Biomaster Thermo 600 - Image 5](https://m.media-amazon.com/images/I/41vxpzDYxDL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: My unit is constantly purging air. Is there a solve for this issue? I recently bought mine just a week ago.**
A: It is Amazing to me how Oase will not admit they have a problem with their Biomaster line . I have dealt with Douglas Ward ,President at Oase and Factory rep.
Adam Raabe
Aquatics Category Manager (North America)
Both of them will not acknowledge there is a purging issue . If you look at the design of the filter you will find that whether  it is the 250 or all the way up to the 850 they all use the same head unit all that is different is wattage and impeller  . Foot print of the the whole biomasters is also the same except for height of canister . From my own personnel experience Biomaster 250 has no purge issues . Biomaster 350 for me purged from day one when I got it in 2019 .Biomaster 600 purged right from Day 1 and is still purging with new head unit and also larger diameter pre filter pipe with 3 times as many holes
than stock . Also coarser pre filter sponges . If you look on line it looks like Biomaster 850 is even worse . Where I am going with this is that the whole basic design is built around dimensions of a lesser flow filter and there in lies the problem . All the silicone in the world on orings will not help the issue . When I took the impeller from the 350 and put it in the 600 head the purging lessened ,still there but less frequently . What I have found is the problem is cavitation inside the housing and trying to get more flow from the filter with the same basic dimensions is what is the cause . Simple hydraulics . Where the impeller sits inside the head is the same size no matter what biomaster you have ,I know this because I have the 250.the 350 and the 600. When you call oase they will try to tell you that is you put a pre filter sponge on the inlet tube in the tank it will cause a restriction and you will have purging BS!!! I am using a very fine sponge on the inlet tube of my biomaster 250 (it is in a shrimp tank) and I have let it go until that sponge was caked in mud and had NO purging ,even when I shook the sh!t out of the filter. The design of the Biomaster line is made for the 250 and the 250 alone . It's no secret there is an issue with that filter . I have an Ehiem 2217 since the 1970's and Two Fluvals 07 series . I have been in the hobby now for approximately 60 years and I have owned many filters over that time going back to the leather belt drive piston air pumps and the old Supreme hang on back filters ,I know something about filters. Oase knows they have a bad issue but does not know how to fix it without getting rid of the 350 ,600 and 850. To conclude here is a little tip ,get yourself a smart switch ,something like a Kasa . Set it up with a schedule where it switches off at least twice a day for a few minutes and comes back on . What will happen is that it will do a purge when it comes back on that will lessen the frequency of purging throughout the day . What you would be doing is what Fluvals FX built in feature does to purge built up air in filter . Unlike Oase Fluval needs only one on off per 24 hours . Smart switch will not cure problem but will lessen the purge issue considerably .

**Q: hi I’m having trouble with this filter. It’s taking in air and  it’s starting to make weird noises. who can I contact for warranty help? Thank you :)**
A: Hello. We are sorry to hear that you are having an issue with your BioMaster Thermo 350. You may contact our Customer Care Team Monday through Friday between the hours of 8:00AM- 6:00PM ET. Our Team looks forward to assisting you!

**Q: Does the heater have its own power source? In other words is it independent of the filter. I want to be able to hook the heater to a temp controller.**
A: Hi, The built-in heater provides your aquarium with precise and uniform temperature levels with adjustable control. The heater is on a separate power cord from the filter. Hope this helps!

**Q: does this come with activated carbon foam/media?**
A: Hi, I purchased my biomaster thermo 350 1 year ago and has been running flawlessly ever since. Now, with the stock csrbon prefilters I had minimal purging.... So i switched to the blue 45 ppi and it was much better.... Then I purchase the red 30ppi and I guess 3 times is a charm... No more purging except the first 10 minutes after cleaning them... Then I am good to go for 3 weeks roughly and I will notice a slight decrease in flow and a few light purges which I've come to love. It's a simple reminder.... Hey, clean the prefilter. Do not listen to the ' gunk it with vasoline and buy metal hose clamps. I also have a second 350 and a 250 on my 15 gallon set up. My advice is really take your time conecting the hoses. I use clear hose and lily pipes... So I can't adjust the flow... Am going to get some double taps from oase now that they're available. Lastly, when I switched to the red 30 ppi pre's I notice avery dramatic increase in flow... Hopefully, this helps... I was kinda annoyed at even one purge when I first bought it... But, give it time... Carefully going over each connection. I use no lubricants of any type...just water from the tank... And all filtrrs are set up bottom tral blue stock sponge, all folling trays seachem matrix and top tray stock red foam. Only fill the trays about 3/4th with matrix. Don't stuff it in. The trays might sit uneven and cause issues .....anyway, best of luck...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 16 April 2023*

The pre-filter and the built in heater both make this lightyears ahead of any other canister filter. So easy to maintain, and very quiet, other than the occasional air burp. Only criticism, is that the GPH is measurably lower than the spec indicates. I wouldn't use this for anything bigger than a 90 gallon aquarium despite what the packaging tells you. I didn't knock a star off for this, only because this is something that seems to be true of all filters.

### ⭐⭐⭐⭐ Review
*by A***M on 25 September 2024*

My thermal 600 has only been running for less then x2 days now and the difference in water clarity is amazing. The unit replaced a Eheim pro 3 as it was getting noisy at the impeller. I have always used canaster systems in my tank setups- E pro 2, 3 and 4+ thinking u get what u pay for - OASE changed that! I did make media changes using my ceramics and sintered glass bio balls instead of blue foam-watch Pimpmyfilter as this vid will explain this in great detail. OASE has made changes to the prefilter pickup tube (larger diameter) so no drilling required and comes with coarse sponges now-will experiment with 35ppi and 60ppi sponges and update flow results. My tank is fully planted 120g 2x2x4ft with very messy fish. The heater the 600 comes with is a 300w and currently has no problem keeping up at my flow settings at 25C. Nice you can easily replace or take out the heater without disassembly of pump-Oase provides plug or you buy the non thermal and want to change to a heater down the road. You can dial back the intake and output flows a little at the line- not the pump. Setup was a snap and filling was fantastic-x2 pumps to prime and all the air trapped was gone in seconds-this is a very quiet unit. This was a huge issue for me in all my previous canisters. Flow was good and strong wide open, only time will tell how long that lasts before some cleaning is required. This is the only unit I have owned where u can clean the prefilter without total disassembly at basket/pump top. Would have given x5 stars if there was different bio media offered other then just sponges for baskets- the output directional flapper is cheap-non directional up or down - spray bar (did not use) is in x2 sections with only x1 end cap. This is the the most expensive filter i have ever owned! Only time will tell if it was worth it. Comes with a possible x4 year warranty with the year extension. Will update with pictures down the road. Up date, changed out the pre filters to a Ppi 30 set. Huge difference in clarity but will slow down flow. Not sure how long before cleaning this set? Will be replacing the Pro4+ in the very near future. Update; Been a good month now, very clean inside as i had to wash prefilters, flow was reduced just a little. Changed prefilters from 30 ppi to 45 ppi and loaded 4L of matrix-last big change. Now need to wait x6 months-more to follow. Update; The 45ppi in pre filter needs to be cleaned 5-6 weeks or the flow will drop off effecting temp drop. Again very easy to do and get up a running again. Water is crystal clear now with o values all around. PH is stable a 7 to 7.1 all the time. Still will replace the Eheim early next year or if this unit ever goes on sale? Lol Will update again in x5 months when I open it up and light clean the trays and internal sponge in last tray. Hoping to be able to go a year and just work the 45ppi pre filter sponges every x5 to 6 weeks?? Now I have x2 keeping my flow rate to x4 or 5 volume turnover. Running a hot tank will require x2 thermals over 120gal.

### ⭐ Review
*by N***Y on 16 June 2020*

Got this to replace a leaking penn plax cascade, all media I added to the filter was cycled and had a precycled backup filter on the tank to help everything adjust to the new filter. The tank is 55 gallon shell dweller tank, so tiny fish in a large tank, not overstocked at all. Filter was working great up until a few days ago. Checked everything, hoses, basket the filter itself. Nothing was blocked and everything was flowing nicely. Turned the system back on and realized the 350 GPH it was supposed to be flowing at was down to a mere trickle. We are talking about maybe 10 gallons an hour, at the very least a 4th if not less then the advertised speed. As I had taken everything apart to check I reaffirmed nothing was clogged. It put everything together and contacted Oase hoping they could help me and a slow filter was probably doing some good. Well no, apparently letting it run created a dead spot somewhere in the filter itself. Opened it again and it was reeking of raw sewage. Guess what ammonia spike.... I tore the thing off my tank and am now in tirage mode. Fish are stressed but hopefully, the worse is over. This filter is an overpriced POS. I'd rather trust my fish to a sun sun now instead of this. After trying to contact their customer support, I got the run around for two days. They don't know anything about fish keeping and kept having to go back to talk to the 'one guy that knows stuff' I talked to them on and off and only after 2 days of talking with them did they actually send me the form to get a replacement. I told them I needed a replacement since the beginning of the conversation. But nope! They offered a replacement to be shipped by mail that would take 7-8 business days. Leaving my tank without filtration for 10 whole days. Yeah thanks Oase. Guess you don't know how filters work, kind of need them to keep the tank running.

## Frequently Bought Together

- OASE Indoor Aquatics Biomaster Thermo 250,Black
- FZONE Aquatic Glass Lily Pipe Set with Skimmer Inflow and Outflow for Aquarium Filter 5/8''(16/22mm) Tubing
- Seachem Matrix, 4 L / 1 gal.

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-05*