Review on 🐠 Sera Flore Active CO2 Reactor 1000 – Ideal for Aquariums Over 160 Gallons by Buffy Foley

Absolutely effective CO2 dissolver. Nothing is wasted. But... it's loud. Even inside the case it sounds like a motor boat. Unacceptable noise level for living quarters in tanks. At the end of the day, a significant amount of CO2 accumulates inside, so this can continue for an hour or more after the photoperiod. The water WILL support the CO2 line, so be very, very confident with your check. Valve does its job. - significantly slows down the flow of the filter when connected to the output line. - The attached suction cups are crap. May be ok if used indoors or in a swamp. Otherwise save your money. I ended up using an old head, a cheap diffuser, and a former bottle of low-sodium soy sauce.