Ai prime 16hd bleaching acro

[OsuMarine]

I have 2 ai prime over my tank mounted about 10 inches above the water. I have the light running around 60% and it seems to be bleaching my acros. According to BRS the par level should be around 140 so why would my acros be bleaching?

 

[MoshJosh]

Is the lighting new? how deep is the acro? Other corals at the same depth?

 

[Charlie’s Frags]

Pics of the corals would be extremely helpful. Are they bleaching or stn/rtn? Your experience and tank sound really new according to your build thread.
Parameters and lighting schedule would help us as well

 

[Reef Psychology]

There are a ton of factors like your presets, acclimation process, low nutrients, schedule length, sudden changes in water parameters, and of course which types of SPS you have - not all of them like intense lighting. Not to mention, changing lights suddenly can have big lagging effects. I’m running a similar setup…

I have 2 16HD’s 10“ above the water with 3D printed prismatic diffusers and at 100% Saxby presets I’m hitting around 320ish mid tank about 5” down. The WWC preset without any changes hits around 220ish at the same level.

 

[Charlie’s Frags]

I don’t see how you guys are getting those par numbers. I had one over a 7g frag tank and had to basically max it out to get 300 par with my apogee 510 6” below the water surface. They are trash lights btw. Lenses started burning around the 1 year mark and then the LEDs started burning out after 2 years.

 

[Townes_Van_Camp]

I don't believe an AI prime or 16 HD have the juice to burn an acropora. I'm maxed/over driven on several channels with an AB+ spectrum. I have favia, next to acro, under a chalice beside euphilia all above a montipora all of it grows just fine. In fact, 1/2 way up, directly under it I have cyphestrea, it's happy as can be.


You have another problem.

 

[Rennurdoar]

I have 2 ai prime over my tank mounted about 10 inches above the water. I have the light running around 60% and it seems to be bleaching my acros. According to BRS the par level should be around 140 so why would my acros be bleaching?

I'm going to lean towards stn/rtn over bleaching also. Pictures would be beneficial as well. 140 par isn't enough for acros either. You need to be up around 250 minimum in my opinion. At 140 they'll all go brown/green (most likely) because they're not getting enough light.

 

[mike550]

Not sure how helpful this will be but I just measured my PAR on a Prime that’s about 10” from the water surface, and placed the sensor on the bottom of a 20G tank so call it 16” of water. If I run AB+ with the blue channels at 100, my PAR is 100 directly below the light

 

[mike550]

Pics of the corals would be extremely helpful. Are they bleaching or stn/rtn? Your experience and tank sound really new according to your build thread.
Parameters and lighting schedule would help us as well

“stn/rtn”???

 

[Boehmtown]

Run those lights at 80% for acropora (anything besides acropora or montipora will probably need less light). That small of a tank id tackle some easier SPS and maybe an acro or two max. I wouldn't run those lights any higher than 80%. Need more light, get another light.

 

[Troylee]

“stn/rtn”???

Slow tissue necrosis, rapid tissue necrosis… common in Sps

 

[Science/G]

Something else is happening not the Hds imho. I run a modified saxby schedule when I had it almost maxed out I reached 180 par at the top of my scape under the lights.

 

[OsuMarine]

I have had these lights for 4 months now and just started to notice the white spot. It’s a jf fox flame and it’s on the bottom because I was worried it was getting bleached. I have the lights running on leon tans preset. Everything else in my tank is doing amazingly well. If anyone would want to share presets they have on a similar tank it would be greatly appreciated. I have a 49 gallon lagoon. 36x24x19

 

[Rennurdoar]

That's stn on the bottom. The frag being

I have had these lights for 4 months now and just started to notice the white spot. It’s a jf fox flame and it’s on the bottom because I was worried it was getting bleached. I have the lights running on leon tans preset. Everything else in my tank is doing amazingly well. If anyone would want to share presets they have on a similar tank it would be greatly appreciated. I have a 49 gallon lagoon. 36x24x19

That looks like stn in the bottom to me. The frag being brown also means it's not getting enough light. If you moved it lower, it definitely isn't getting enough now.

How's your flow also. Should be fairly strong and chaotic/random. I would try and increase your lighting, then you should see some improvement.