Can we add this to an existing reef with slightly elevated ammonia?

If by existing you mean live stock in it? Yes, and if you mean no stock but ammonia, yes again. You might be better off doing a water change if you have life in tank though. If you dose this you will have to monitor nitrite and nitrate cycles.

Im new...will this kill off my invert food sources or hurt them in any way?

It will not kill your invert food source. It’s bacteria that’s beneficial to your aquarium

Noob question how much of this do I use on a 32 gallon biocube? It’s a new tank I can’t find any measuring cups for ML anywhere n my town

Once your tank has been fed regularly for a few days either with out without fish to start the bacterial cycle, add half during the first week and the other half during the 2nd. Add a small amount after water changes is also a good idea for upkeep. Buy 2 bottles.

how long did it take for this product to bring down nitrite levels?

I wouldn't use this product as a means of nitrite reduction. Live rock will do a much better job of that. I use this product as a means of adding biodiversity to my tank. It did nothing for nitrate levels.

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Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz

Product ID: 57104239

Details

Brand
Brightwell
Item form
Liquid
Item weight
1 Pounds
Liquid volume
2 Litres
Unit count
1 count

💧2L liquid volume

🦠7-strain microbial blend

🇺🇸Made in USA quality

75352 Ft

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Description

🦠 Elevate your aquarium’s ecosystem with microbial magic!

NUTRIENT MASTERY - Accelerates nitrification & denitrification, slashing ammonia, nitrite & phosphate levels.
MICROBIAL POWERHOUSE - Advanced aerobic & anaerobic bacteria boost filtration and water clarity fast.
DUAL ECOSYSTEM SUPPORT - Optimized for both saltwater and freshwater tanks—versatility that fits your lifestyle.
CLEANER HEALTHIER WATER - Rapidly reduces organic waste and hydrogen sulfide for a vibrant aquatic environment.
TRUSTED AMERICAN CRAFTSMANSHIP - Scientifically backed, vet-recommended formula made with pride in the USA.

Brightwell Aquatics MicroBacter7 is a 2-liter advanced bioculture liquid designed to establish and enhance biological filtration in both freshwater and saltwater aquariums. Featuring a complex blend of aerobic and anaerobic microbes plus natural enzymes, it accelerates nutrient cycling by reducing ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide, resulting in clearer, healthier water. Made in the USA and vet-recommended, it’s the go-to solution for aquarium enthusiasts seeking superior water quality and ecosystem balance.

Specifications

ASIN	B00412Z28S
Allergen Information	Sulphites Free
Best Sellers Rank	173,360 in Pet Supplies ( See Top 100 in Pet Supplies ) 1,530 in Aquarium Water Treatments
Brand Name	Brightwell Aquatics
Country Of Origin	United Kingdom
Customer Reviews	4.7 4.7 out of 5 stars (359)
Global Trade Identification Number	00810086012213
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	1 Pounds
Liquid Volume	2 Litres
Manufacturer	TopDawg Pet Supply
Manufacturer Part Number	BAC2L
Model Number	BAC2L
Number of Items	1
Pet Type	Fish
Target Species	Fish
UPC	810086012213
Unit Count	1 count

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75352 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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