Ok so I'm getting a 50g tank from a guy at works uncle for $100 cnd with the lights (unknown wether its iridescent (sp) or fluorescent), plants, stand and I believe rocks, now I don't know if it has a filter or not so I was wondering if I could use 2 aquaclear 150's until I can get one that is rated for that size tank???Before anyone asks I do have a heater for it and all the oother stuff I need.....anyones advice would be greatly appreciated...thanx