I'm thinking about starting a saltwater aquarium and have thought over a couple of designs. I'm very new to the hobby , so I'm not sure if what I want to do will work or if its even necessary. This would be a fish only aquarium.
What I was thinking about doing is cutting a PVC
pipe in half and placing it in side my 29 gallon tank (sealed with silicone). The top of the pipe would have groves cut out to act as an overflow. The water would spill into the pipe and through bio balls to help with biological filtration (sort of like a wet/dry filter I suppose). Next the water would trickle down below the balls into a small reservoir where my canister filter(a Rena Filterstar xP1) would pull it up and out of the tank, do its thing, and return the water to the tank.
See my attached picture for clarification.
Would this work?