adacaro
Aquarium Advice Activist
Every time I have my tank cleaned they leave the water leveled in the bio ball refugium sump and two days later the water goes down to about 1in. it only covers the part of the pump that pushes the water up. I try putting more water in and the same thing happens over and over and the water level in the tank keeps on going up, my tank is an year old and this has never happen.