What size airline ? The one suggested by amazon is too small .

This air stone matches two size air tubes, 3/16 " and 3/8". Wet the airline with water. It might be easier to install.

How many leters per min?

You’re better off with the pawfly 8” cylinder. These deteriorate extremely fast as if the material they used is insufficient.

Yes they do sink. Also check out pawfly 8” cylinders. I tried the synthetic pawfly black 8” and I think its cheaply made so I’ll be sticking with the original blue 8” pawfly airstone cylinders.

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Description

💧 Elevate your hydroponics & aquariums with bubbles that mean business!

DUAL PACK EFFICIENCY - Two premium airstones for double the oxygenation power
OPTIMIZED BUBBLE OUTPUT - Designed to maximize oxygen diffusion for healthier aquatic life
ROBUST PROTECTIVE SHELL - Durable casing shields stones for long-lasting performance
EASY MAINTENANCE ROUTINE - Simple soak and brush cleaning keeps your system running smoothly
UNIVERSAL TUBING COMPATIBILITY - Works seamlessly with 3/16" and 3/8" inner diameter tubing

The ALEGI Airstone Cylinder Bubbler is a 13.5cm mineral stone diffuser designed for hydroponic systems and aquariums. This 2-pack features durable shells, fits common tubing sizes (3/16" or 3/8"), and requires a minimum 4W air pump to generate optimal oxygen bubbles, promoting healthier aquatic environments.

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