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Colors and regenerates coral as well maximizes nutrient absorption
It is completely safe for all fish
Turn on UV sterilizer
One is spinning while the other one is static
Jbj Nano Ato coral Colors and regenerates coral asEnjoy a precise water level and peace of mind with the JBJ Dual Sensor auto top off system. With the included sensor cover you never have to worry about tank inhabitants causing false readings again, as an added bonus this cover will prevent sudden surface agitation from causing fluctuating water levels. Everything included, just install and enjoy consistent water and salinity levels. The JBJ Nano ATO is the perfect upgrade for your aquarium.