Mine are 9" from the water but my tank is only 18" tall and the water level is 2 inches below that and about an inch of sand so only about 15" of water to penetrate, that was the reason I removed the lenses as I had shadows in the far corners and could see beams of light through the water and gave me hotspots on the corals whether it was necessary to do so probably not as the corals grew, and grew well. From speaking to others I think I'm phosphate deficient but i need a new kit to confirm this first.Thanks for the compliment, I have them 8" from water surface.
Just found this thread, I am a big fan of these lights. Affordable and does the job. I run four 165 watt viparspectra at 100% on both channels.
Here is my tank,
hi George81 have you got a pic of your set up running 65 blue 20 white?I’m still searching for the correct setting. I run mine at 65 blue and 20 white. That’s interesting you’re running at 100% both channels. Through all my searching no one has posted those numbers. How deep is your tank Steve? I’m afraid to turn them up full blast. Your tank looks great.
Do you remember off hand how many warm whites there are in the light as I cant find info on quantities of each apart from the reds and greens?So when i first got these lights i thought the white was a bit too warm. So i switched all the white leds out with cold white leds.
I’ll get it later today, I turned them down a bit after measuring with the seneye . I’ll get exact measurements of high the light is off the tank. On the sand bed where I have some acanas and a hammer the par was over 300. Mid tank the par was over 420 in some spots. I turned them down to 60-20. I haven’t measured them yet.hi George81 have you got a pic of your set up running 65 blue 20 white?
I’ll do it, but it won’t be for a few weeks until I post the results. I’ll be working lots over the next 3 weeks. July is always busy for shut down workThat will be greatly appreciated. I have mine at 75blue and 5 white. My light is 9 inches off the water. If you get a chance and find a little time while using your Seneye could try and do some par readings with different intensities of blues and whites please. It's just most people don't have access to a meter, you don't have to obviously.
Also if you did, it doesn't have to be loads of variables or different locations in the tank just below it at different heights in the water. I think this would help a few people who have just got these lights or even like myself had them along time know where to start and not either starve corals of light or cook them. Most posts I've found only show really high readings of what these lights at 100% on both channels a capable of . Which is way over what our corals need. And due to most people running mainly blues, it would be nice to know what par just blues put out. I notice a few people in this thread run 100 blue and 1 white but that seems to grow corals for them.
I had two over my 40breeder. They are decent lights but i have switched to t5’s because they didnt provide full spectrum.Hi,
I'm new to this site and can't find if it has been asked before. So my question is, is anyone else using these viparspectra led lights?
I have had one since Xmas, 8" over a 24x18x18 mixed reef, I have worked upto a setting of 65% blue an 20% white, which have worked upto and I have only had this setting for a week. As on an old nano tank I had bleached hammer corals with a Tmc aquaray, ￼so I'm taking it slow. The few sps frags I have, have shown some growth but not as much as I would have liked to see over 7 months. I just wandered if I should run the whites or blues higher to promote growth? Any help would be much appreciated. Thanks