ANS OPTI GLASS CO2 Nano Checker Glass

Description

The ANS OPTI GLASS CO2 Nano Checker Glass is a CO2 system component for planted aquariums.

Key Features

• Essential for providing carbon dioxide to aquatic plants
• Promotes healthy and vigorous plant growth
• Compatible with standard CO2 regulator setups

Reading CO2 with the ANS Opti Glass Nano Checker in SG tanks

A drop checker like this Opti Glass nano unit is how local hobbyists actually confirm CO2 levels rather than guessing from bubble count alone. You fill the small reservoir with 4dKH indicator solution, hang it on the far glass from your diffuser, and watch the colour over a few hours. The compact nano size suits the rimless cubes and bookshelf tanks that fit neatly into HDB and condo spaces without crowding the viewing pane.

In our warm 27-29C water, CO2 off-gasses faster, so verifying saturation matters more than people expect. Aim for a stable lime green during the photoperiod; deep blue means too little, yellow warns of dangerous excess that can stress fish overnight. Because the indicator lags by an hour or two, read it mid-photoperiod rather than right after the solenoid fires for an accurate picture of dissolved carbon dioxide.

We stock the full co2-systems range to pair with it. New to injection? Our drop checker and pH measurement guide and 30ppm verification methods walk you through dialling in a safe, planted-tank-ready 30ppm.