Topic
6 guides.
An ATO replaces evaporated water automatically so salinity stays steady. XP Aqua's Duetto 2 has two optical sensors and two layers of overfill protection. Here are four more.
Active Aqua's 1/10 HP chiller is the one we would buy for a 20 to 40 gallon tank that runs hot. Here is when a fan is enough, how chillers are sized, and what axolotls need.
A reef needs roughly 20 to 40 times its volume in flow every hour. Here is the controllable DC wavemaker we would buy, simple circulation pumps, and a crossflow option.
Reef Octopus's Classic 110-INT is the skimmer we would put in a sump on a 40 to 75 gallon reef. Here are the nano options for all-in-one tanks and a DC skimmer for big systems.
Kessil's A160WE Tuna Blue is the reef light we would put over a 20 to 40 gallon reef. Here is how it compares with Red Sea's ReefLED G2, NICREW's HyperReef and a budget panel.
Reef tanks and soft-water fish need RO/DI water; most community tanks do fine on conditioned tap water. Here is what RO removes, what it wastes, and the units we would buy.
