I have a 90 gal
reef tank with Velocity T2 external pump and a wet/dry-turned-sump. I have several reasons for change. The pump adds a lot of heat to the water. With no heater or lights the tank is 82F when it's 74F in the house. I want a bigger sump and I want it cheap (DIY
). The T2 pump is rated for 650 gph
@ 3' head. My return is a 1" bulk-head (built-in overflow) with durso standpipe.
Replace wet/dry sump with a 30 gal
tank (that's the biggest that will fit). I'll put in some baffles and all that too.
Switch to either a Mag 7 or 9.5 and run it submerged.
1. Which Mag should I get? It will go 4.5' up with one elbow. I want it to be close to silent so if there's a big difference in noise between the 7 and 9.5 then I'll just go with the 7. Maybe the 9.5 is too much for my 1" bulkhead return anyway?
2. I've read claims that the Mag pumps only raise temps 1 or 2 degrees. Is that a typical experience?