I have decided to sell my new crrt 1500. This reactor is the automatic one from deltec. It is literally too efficient for my lps dominated tank. Perfect solution for SPS system. Easy to setup and fairly easy to dial in. Took me about a week to figure it all out. I am selling this with a 5 lb new tank and everything including 2 little fishies media and mag. 1650.00 The unit was used for 2 weeks. so basically brand new. 100 shipping fee due to bulk and weight.