souperman Posted December 21, 2011 Share Posted December 21, 2011 I have a Tek 6 lamp T5 light hanging above my 90G. How high are you guys hanging your fixtures above the water level? I'm asking because it seems my SPS near the top are looking a bit pale. Right now it is about 6" above the water. My water just tested: Ca 425 Alk 8.5 Mag 1350 Nitrates and Phosphates are not registering on my test kits. Ph is 8.15 to 8.25 SG is 1.024 Link to comment Share on other sites More sharing options...
NoobtoSalt Posted December 21, 2011 Share Posted December 21, 2011 I have a current unit that is 12 bulbs. I only have a little bit of sps (monti's and purple digi). My lights are about 8" above the water and they are all pretty happy in my tank. How is your flow? That will make a big difference as well with your lighting. Link to comment Share on other sites More sharing options...
souperman Posted December 21, 2011 Author Share Posted December 21, 2011 I have a pair of MP40s that rotate through a few different modes thru the day. The max I drive them at is about 70%, much more than that and I start blowing a lot of sand around. Link to comment Share on other sites More sharing options...
NoobtoSalt Posted December 21, 2011 Share Posted December 21, 2011 I have a pair of MP40s that rotate through a few different modes thru the day. The max I drive them at is about 70%' date=' much more than that and I start blowing a lot of sand around.[/quote'] Well scratch that idea then...(laugh) Sent from my SCH-I500 using Tapatalk Link to comment Share on other sites More sharing options...
impur Posted December 21, 2011 Share Posted December 21, 2011 I had a 6 bulb TEK fixture over my 75gal, it was about 6" above the water and my SPS all did great. What bulb combo are you using? Link to comment Share on other sites More sharing options...
souperman Posted December 21, 2011 Author Share Posted December 21, 2011 4 ati blue plus, a purple plus, and a ge 6500k. I may be worried about nothing. My coral are all small frags so it may take a few months to grow out and color up? Sent from my Nexus S 4G using Tapatalk Link to comment Share on other sites More sharing options...
Mitchell Posted December 21, 2011 Share Posted December 21, 2011 I have my t5 fixture sitting on the frame of the tank, so it is only an inch or two above the water. Everything did really well until my tank crash. Sent from my Galaxy Nexus using Tapatalk Link to comment Share on other sites More sharing options...
impur Posted December 21, 2011 Share Posted December 21, 2011 4 ati blue plus, a purple plus, and a ge 6500k. I may be worried about nothing. My coral are all small frags so it may take a few months to grow out and color up? Sent from my Nexus S 4G using Tapatalk Yah they do take some time to get their color when they are fresh cut frags to begin with. You might look at bringing your SG up to 35ppt, you are a little low there. Link to comment Share on other sites More sharing options...
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