I have instaled lights back over tank two 150 w halides , have got new sump 1m x .6 w x .45 h .Painted back of tank (well got 8 year old daughter to do this) black . But just a question to those with remote sumps were do you control the return pump from , tank or sump or both.I 've always had sump under tank so if any overflow problems everything is there but if the pump is under house I'm either going to wire pump to garage or thru floor to tank.