So go figure we will be upgrading the reefer as it's just too small. We give up on the aggressive tank and going full on big reefer. I will be getting the Red Sea Reefer 750 XXL Deluxe. Can't decide if I want to stick with aragonite black sand or aragonite pink sand. I am looking for some feed back with the pumps. Thinking of the gyre or MP 40. What do you guys prefer and why? I do like my MP 40 I have right now. I will be getting it by spring of next year as I have too many projects right now to deal with tank build.