Wht which one do u need for 500 litre tank

This is to SEE if your CO2 is as okay. When the liquid is green the water is in balance - Blue or yellow it is not. This indicator hangs over the edge of the tank - the open end of the tube MUST be in the water not just the tank (the reactive liquid in the ball side is outside).

Do u put this right above the bubble releaser

No because you will get a false reading. Put it at the opposite corner of the tank to where your bubbler is.

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🔬 Elevate your aquarium game with precision CO2 monitoring!

PREMIUM CLARITY - Crafted from durable, crystal-clear glass for an elegant, unobtrusive look.
SLEEK STYLISH - Modern ball design that complements any aquarium setup, making monitoring a statement.
ALL INCLUSIVE KIT - Comes complete with indicator liquid, suction cup, and filling set—ready to use out of the box.
CONTINUOUS CO 2 INSIGHT - Stay ahead with real-time, permanent CO2 level tracking for your freshwater aquarium.
EFFORTLESS INSTALLATION - Mounts seamlessly on your tank’s side wall—no hassle, just precision.

The Q-Grow CO2 Endurance Test Indicator Monitor Drop Checker offers permanent, accurate measurement of CO2 levels in freshwater aquariums. Featuring a crystal-clear, robust glass ball design, it mounts easily on the aquarium side wall and includes all necessary accessories—indicator liquid, suction cup, and filling set—for immediate use. Lightweight and elegant, it ensures your aquatic environment stays perfectly balanced with style.

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TT$49

Duties & taxes incl.

Trinidad and Tobagostore

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Package Dimensions	11.8 x 10 x 8.8 cm; 80 g
Manufacturer reference	YAMOOCO
Item Form	Liquid
Size	Ball
Quantity	1
Batteries required	No
Batteries Included	No
Item Weight	80 g

Q-Grow CO2 Endurance Test Indicator Monitor Drop Checker Test for Freshwater Aquarium - Ball

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