AIO drop in

[new2reefing123]

40 gallon breeder with a fijicube AIO drop in. What should my water levels be in each chamber of the AIO?

 

[srobertb]

To minimize salinity swings the center baffle/return baffle water level should be slightly lower than the ones around it. Go over the glass and it will use the entire chamber as the fill-line, too little and you’ll hear splashing.

I have NUVO AIO’s (40g, 20g, 10g, and 120g) and this seems t work best.