Is it a DIY Styrofoam background and if so how thick is it overall?
ASFAIK, they need to be attached firmly using silicone liberally because otherwise they are extremely buoyant and will pop out of the tank and potentially break glass lids, lights and possibly the plastic brace in the top of the tank.
Can you post a couple pics of your background?
ASFAIK, they need to be attached firmly using silicone liberally because otherwise they are extremely buoyant and will pop out of the tank and potentially break glass lids, lights and possibly the plastic brace in the top of the tank.
Can you post a couple pics of your background?
