Ye, You can pick up a few cheap pumps on ebay. the size of this tank you will need a minimum of 2 big pump filters such as ehiem or fluval 404s. Dont put gravel or sand in the tank as this will just collect a lot of waste from the fish and without gravel the pump will easily collect the fish waste. It is not much price differnce in setting up tropical or coldwater. with a tropical all you really need is a few filters and 2 heaters. Heaters can be picked up for about £10-15 each. And with tropical you have much more choice with various fishes.