I have had an unlucky but bad experience with an inline chiller and now wanted to get a drop in chiller instead. I don't have a sump for my aqaurium, i have a fluval 404, and was wondering if it is ok to drop in the coil into the tank. The company says it's fine, the coil is titanium and foster and smith didn't have many issues with it - but I wanted to get some more opinions. Any advice or ideas?