Moon V3 light and dying coral

Meowwwwmix · Mar 29, 2022

Okay so I'm an idiot, and been having trouble with my tank for months, evo 13.5 gallon tank, was having trouble last summer with heat, so ended up scrapping the top for meah and my lfs guy sold me a moon V3 light, he programmed it once upon a time and I went with that, shortly after I had 3 hammers and a frogspawn die off, one after another, frogspawn bleached first then they all slowly withered and died, Duncan, blastos, zoas all fine but the blastos are in a more shaded area where the hammers were located(but they are at the bottom of my tank) . Over the next few months, I tried adding one here or there but again they just keep dying off after a couple weeks in the tank, waters been fine I do 30-40% water changes once to twice a week. Me being an idiot just realized they started dying off directly after I changed my light from the stock one. I can't find proper light schedules on what this light should be, or if it should be lower in a small tank? And would my issue be from too much light vs not enough? I had them slowly ramp up from 9-12 to 70% blues until 6 and slowly back down to cut out at 9, is this too much?

Tuan’s Reef · Mar 29, 2022

Sounds like too much light. You can rent a par meter to see what that light is outputting. Does it have acclimation mode? Maybe turn the intensity down.

blaxsun · Mar 29, 2022

It could be related to flow or lighting, yes. There could also be something with your water parameters, so if you haven't tested recently I'd get that checked first.

Meowwwwmix · Mar 30, 2022

Tuan’s Reef said:
Sounds like too much light. You can rent a par meter to see what that light is outputting. Does it have acclimation mode? Maybe turn the intensity down.

I didn't see an acclimation mode but I'll check it out thank you!

Meowwwwmix · Mar 30, 2022

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blaxsun said:
It could be related to flow or lighting, yes. There could also be something with your water parameters, so if you haven't tested recently I'd get that checked first.

I check my water weekly and everything's seemed fine there, would flow change? I stupidly always put them in the same spot, they thrived there for months and grew with the pump and WaveMaker in the same spot