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Edward

Sbreef ultra leds intensity

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Edward   

Hello,

I've had my 34 inch sbreef ultra on my 40b for about 1 to 2 weeks. I used the excel spreadsheet for the most part. My blues max at 35%, whites 4%, warm white 4%. The whites were at 10%. But I decreased bc my duncans and some zoas were not opening. Still some are not and my green slimer (sps) is fading. What is the best way to tackle this issue? Also, on the spreadsheet the UV values dont change even if I use different peak % values. It jumps from off to 33% and then to 100% where is remains for the rest of the day. Therefore, I have it maxed out to 10% because I didnt know if this is correct. Previously I had one rapidled corona which I had ramping to 55% blue, 20% white, 5% red, 5% green. They are at the same height but the corona didn't spread across the tank like the ultra. Any information to help me set up the ultra properly for my tank would be amazing and greatly appreciated. I'm not too worried about pleasing the eye right now, I really want to make sure my coral are happy and healthy. Thanks in advance

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Not that it’s actually an answer but I run a pair of 16 SB Wi-Fi’s 18 inches above a 75 gallon bowfront like this f9babd7bfbe140c44f3e71eb5217615c.png I get good growth and everything from zoas and mushrooms bottom to middle level and plating Monties to Branching sps’s mid to high level do well with good polyp extension.

 

I didn’t take a whole lot of input to get to this point but it has seemed to do well for me.

 

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Edward   

Thank you Dakota.

Mike commented that there was no error on the formula for the uv leds. So now I have them going to 100% peak. Do you think my coral is fading or not opening bc of the new lighting? Also, can too much blue (peaks at 35%) bleach your coral? Btw my white and warm whites are at 4% peak. 

 

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Takes a lil while to acclimate to new types of lights, also blue is a lot stronger par than it appears to the human eye. Best practice I can say is start low and work up. I’ve never had and issue with SB light being to strong (even though I know they are high output) I’ve always ran them 12-18” above the tank, and my softies don’t seem to mind. I’ve always ran a mixed reef and the only thing I’ve ever had to move down was a frogspawn that I brought home from Tallahassee that was under basic shop light fluorescents at the store. Now it sits 1/2 way up in the new tank, same lights.

 

 

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Edward   

My light is roughly 17 inches above the water. How did you transition to the lighting schedule you have now? Did you start off with the excel spreadsheet that is available?

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The first time I transitioned I left up the T-5 I started with and added the LEDs on low for a few weeks because I had the room. The next time I switched to a new tank I just started at 10% and went up 5% ish every other week till I got to where I am. Also if you bump up your carbon in a reactor the water column may clear significantly enough to significantly impact your par.


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Edward   

Okay thanks, so should I take my blue down to 10 to 15 %? It's currently ramping up to 30% using the excel spreadsheet. White and warm white 4%. With uv maxing to 100% because Mike said uv is good for coral. 

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I’ve never run my UV that high so I couldn’t speak to it. Maybe try kicking them down at some point too, it’s a lot harder to do damage with to little light. Ya can over light in a super short amount of time comparatively.


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Edward   

I will, I'm just gonna bring the intensity down and start low and work my way up. Hopefully it will work better for me. Thanks

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I'm just gonna say I hate LEDs because of having to always fiddle with the settings to dial in the channels just right. (And I have 11 tanks with various LED fixtures.)

Someday I'm going back to T5s and/or halides, just change the bulbs every 12 months and call it a day. :P

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Edward   

Yea, when I first put the tank up two years ago i thought about t5's. At the time i was like leds have a ton of controlability so I chose leds. T5's I feel like the light spreads more evenly, but it is what it is. LEDs are just a pain to adjust to your tank when you already have coral in it.

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