lighting and pump question

[will2525]

I currently have an AGA 210 72x24x30. I have 4 Tek retros (8 bulbs) in the canopy but I want to get rid of the canopy. I'm leaning tword the ATI sunpower. My question is since they are supposed to put out more par then Teks can I go with a 6 bulb instead of an 8 or just just go with the 8 bulb to he safe since its such a tall tank. Its a mixed reef.

Also, I currently have 2 mag7's for return pumps and I'm very underwhelmed with their flow and heat. I was thinking 2 900gph eihem compacts instead. I want to stay with submersable pumps since my sump is glass and I don't want to drill it. Any advise?

 

[strange33w]

I would go with the 8 bulb fixture. I would not want to get the 6 and then want 8 later. As for a return not sure as I went with an external but maybe a larger mag like a mag 18 so you only have the heat from 1 pump.

 

[KSzegi]

I would go with the 8 bulb fixture also.... you would most likely be okay with the 6 bulb depending upon aquascape and coral placement but with the depth of the tank I think you are right - the 8 bulb would be safer and with a 60" fixture on a 72" tank you will still have some lower light areas on the ends of the tank if you need it. I run a 6 bulb 48" on a standard 90 gallon (48 x 18 x 24) with a dsb .... and not wishing for less light! :bigsmile:


Have heard great things about the eheims .... but I've switched both my tanks over to the water blaster pumps and absolutely love them - noticeably less heat than the mag pumps and super super quiet and move a lot of water.