The Co2 Drop Checker Hang-On version provides constant monitoring of the concentration of this gas in the aquarium. Simply fill the indicator with indicator fluid (10ml bottle included) so that the indicator’s colour shows the CO2 level in the aquarium. Unlike plastic indicators, the glass one looks particularly attractive and aesthetic.

Basic features of the device:

• Modern, transparent appearance, attractive design
• Dedicated to any aquarium regardless of size
• Maximum glass thickness 10mm
• The product is hung on the edge of the aquarium so that the liquid canister is outside the aquarium
• Available in Nano and Standard Version