Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
1. How high are your lights off the tank. I would raise them to 20" off the water then turn up the intensity all the way.
2. How long are the corals surviving in the tank days or weeks? If days the problem is not lights.
3. I honestly feel the use of marco rock or dead rock has caused problems for people. I dose mb7 weekly I think it helps. My tank is same size with 80g sump and 10 years old... switched to all SPS just a year ago. You may need to lower your nopox/vinegar/vodka dosing a little... I dose mine as though its only 200g.
4. You are not having any algae or slime issues are you?
Are you talking about this article?Your lights are probably part of the problem. LED's have shadowing issues especially that close. I would raise them up and turn the intensity up a lot if not all the way.
Are you running T5's with the leds? That can help with the shadowing but I still would raise the leds. If you watch the videos with BRS comparing the major LED brands they show them at different height and coverage.
Tank looks nice! With that many softies and leathers I would definately make sure you are running carbon too.
Anytime!So I borrowed Jeremy's par meter, thanks Jeremy!
When I raised the pendants 20" off of the water, and intensity is a little less than 50%, the par about an inch down is between 300-350. I have Ozone running so the water clarity is probably making the LED's more effective as it isn't fighting the yellowing particles.
I can visually see a giant difference in the SPS on the top of the water column in just a few days of raising the lights. So I have to believe that I was feeding way too much light even when it was at 70%. I will keep tabs on the corals and see what transpires.
Not sure I can visually "see" a difference between 50% and 70% with the naked eye. I also lowered just the white lights another 5% to give it a slightly bluer look to it.
So far so good.