I am building a 75 gallon paludarium for mudskippers... I am going to use one of the Cascade canisters that I already have, my question is can I close off the intake and output valves slightly so the flow is reduced? or will this be bad for the motor or canister in the long run?? if it needs to be wide open I can probably make it work, and would rather not mess up my equipment... anyone ever done this??