Light intensity for LPS is it too high?

Koty · Nov 3, 2021

I just figured that my LPS corals are not getting enough light so i have been increasing it gradually.Does this sound like a possible cause why some of my coras are looking great and others look wierd. Its a maxspect led RSX 200 here is the tank 120x 50 x h60:

Here is the light profile (including 2 cloud passing simulations):

Uriken · Nov 3, 2021

It looks like you may have some "newer" and possibly recent introductions into the tank? I had to do some various placements with more light versus less light and high flow versus low flow to get some to come around and look better.

Koty · Nov 3, 2021

I am new to reefing(10 months). After all the warnings you get from all kind of sorces to be carfull with light intensity. But now if you look at corals on display in LFSs the light intensity is .... not low and guess what, all the corals including LPSs look amazing. I now increased it to sbout 4hrs of high intrnsity (95%).will report on the outcome

Avengerx77 · Nov 3, 2021

Try to find someone that owns a PAR meter that maybe you can borrow or rent it for a few days. Most likely is that they are actually not getting much light. I have not yet introduced any corals to my tank, as I wanted to test for PAR levels before making any purchase. To my surprise, I am just getting between 50-150 PAR at 90% intensity on a Radion XR15Blue, which is the minimum for soft/LPS corals.

Shirak · Nov 3, 2021

Best to not go by what your eyes see as intensity. Your eyes are really bad at judging intensity at the spectrum over most reef tanks. It's a good idea to start new corals low in the tank and work them into higher light areas, unless you know your actual par values and the par value of where the new corals came from.