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.

Alegi Air Stone Cylinder Bubbler For Hydroponic Systems Aquarium Fish

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Description

💧 Elevate your aquatic ecosystem with precision bubbles that breathe life into every drop!

DUAL PACK CONVENIENCE - Two 5.3-inch air stones included, doubling your aeration power and value for larger tanks or multiple setups.
EASY MAINTENANCE PROTOCOL - Simple soaking and brushing routine keeps stones clog-free, maintaining peak performance without hassle.
OPTIMIZED BUBBLE DIFFUSION - Creates a steady stream of microbubbles that enhance oxygenation and water circulation, promoting healthier aquatic life.
ROBUST LONG LASTING DESIGN - Encased in a strong shell to resist clogging and damage, extending the lifespan of your aquarium or hydroponic system.
UNIVERSAL TUBING COMPATIBILITY - Fits both 3/16” and 3/8” inner diameter tubing, ensuring seamless integration with most air pumps and hydroponic setups.

The ALEGI Air Stone Cylinder Bubbler is a 5.3-inch durable mineral stone diffuser designed for aquariums, fish tanks, and hydroponic systems. Compatible with 3/16” and 3/8” tubing, it produces fine, evenly distributed bubbles to optimize oxygenation and water circulation. Sold in a convenient 2-pack, it features a protective shell for longevity and requires minimal maintenance to keep your aquatic environment thriving.

Specifications

ASIN	B083NFTMBC
Batteries Included	No
Best Sellers Rank	#51,035 in Pet Supplies ( See Top 100 in Pet Supplies ) #3,013 in Aquarium Accessories
Customer Reviews	4.3 4.3 out of 5 stars (838)
Date First Available	4 June 2020
Item Weight	340 g
Package Dimensions	18.39 x 9.6 x 4.19 cm; 340 g
Quantity	1
batteries required	No

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