i just visited nanyang seaview to get ideas (inspiration :P) on filters for my tank.
i'm thinking of getting a dolphin 3ft black box OHF, inside put jap mat and wool. And also a plastic corner filter (guppy brand) run by bubbles, inside dont put wool, but put as much ceramic rings as i can fit inside.
intending to keep 2-3 pieces of goldfish, any comments on this set up can tahan the bioload?