Originally Posted by Sniperhank
What kind of lighting do you have over your system? Secondly, your tests are showing 0 because the algae growing in your tank is consuming it, ie the stuff seen in your substrate. One of these 2 is the reason your coral aren't opening, possibly from parameter shock if they weren't acclimated to the new levels. The thing about ordering coral, as all of the coral I own have come through the mail, is that they are stressed upon arrival. They need to be acclimated slowly over several hours to avoid stress, both to water parameters and lighting. Imagine coming out of a completely dark, highly air conditioned hotel room onto the pool deck on a bright sunny day and being pushed into the pool.
I have a marine land capable LED
. It's a 27 LED
lighting system. I took about 2 hours acclimating them but I did not turn off my aquarium light when I started acclimating. It was brought to my attention that I should have shut off the light prior to acclimation. During the acclimation though, they were peaking out a little bit. Wen I first introduced them into the tank I put them under open light. I moved them a few days later to some shadier areas and I started to see results, as you see... These results are VERY slow. I finally have one Duncan that its starting to blossom quite well. The gorgonian has only had one or two polyps show at one time then retracted. The other Duncan peeks out from time to time but won't extend like the other one has. I did notice the change in the other Duncan that is actually showing results didn't happen until lastnight when I completely turned off my light over night.