Huge canister on nano tank?
I am planning on building a nano tank, with no expenses spared. It will be placed on a large desk, with plenty of space underneath. Now, I was thinking, wouldn't it be great if I could use a huge canister filter on this tiny tank? It would add water volume to the system! Of course normally the flow would be way too high and the fish would be *ahem*... congregated around the inflow.
I was thinking to add a piece of hose, with an adjustable tap, in between the outflow and inflow hoses of the canister, a short distance from the canister. This way, some of the water will flow to the tank, and (hopefully) most of the water will flow right back into the filter through the inflow hose. I think the volume of water flowing right back into the canister might be high enough, because the water has to fight gravity to enter the tank, and there will be some suction effect on the inflow, making the "bridge" between the two hoses the path of least resistance for the water.
What do you guys think of this idea? Is it possible for the water to spend too much time in the canister as opposed to the tank, thus being overfiltered, if there is such a thing? Do you think I can decrease flow in the tank enough this way? Anything am not considering?
I have thought about using a sump filter, but I want to be able to use lily pipes. If anyone knows of a way to do this, I would love to hear it too.
And a little unrelated question, does anyone know whether inline (external) heaters use more or less energy than conventional heaters? And would an overpowered heater be ok for a nano tank, since it has a thermostat?
Looking forward to your thoughts!