I have another question, I have decided to go with an overflow box for my sump instead of modding my tank. The only ones I can really find are the CPR ones such as the CPR CS50. After reading the reviews a lot of people say the air tube gets clogged and causes issues. I was wondering what you guys thought of theses CPR boxes and if they are no good then what kind of overflow boxes you guys are using and where should I look to get a good one. I have found several DIY plans but none that does no caall for bending acrylic which I really do not want to tackle. Thanks for the help
Frank
Frank