Coral colors fading--NOT bleaching. Why?
Posted: Wed Aug 08, 2018 10:01 pm
Hey all. I've noticed something going on with my corals that I just can't figure out. I have bought frags as well as mature pieces and after a week or two in my tank the color starts to fade. Mind you it's not bleaching, because 1) they still have color--just not intense and 2) my corals are growing very well. An example is I bought a frag of GARF Purple Bonsai two weeks ago and it has grown almost 1/8" since then.
Here is my tank info:
3 T5 ATI bulbs, Hagen Marine Glo--four months old. Generating 500 PAR at the surface and 200 on the bottom sides. Run blues for 10hrs/day and the whites about 7.5/day.
pH-8.1, Ca+-420, Alk-4.2meq/L, Mg+-1365, temp-83, SG-1.027
All of the bad stuff (NO3 etc) are undetectable.
I am really trying to figure out what is going on with this. I could understand if my corals where suffering and not growing, but mine aren't. It was suggested that it could be low iodine or other trace mineral/elements.
Really would appreciate any help or suggestions.
Thanks
Andrade
Here is my tank info:
3 T5 ATI bulbs, Hagen Marine Glo--four months old. Generating 500 PAR at the surface and 200 on the bottom sides. Run blues for 10hrs/day and the whites about 7.5/day.
pH-8.1, Ca+-420, Alk-4.2meq/L, Mg+-1365, temp-83, SG-1.027
All of the bad stuff (NO3 etc) are undetectable.
I am really trying to figure out what is going on with this. I could understand if my corals where suffering and not growing, but mine aren't. It was suggested that it could be low iodine or other trace mineral/elements.
Really would appreciate any help or suggestions.
Thanks
Andrade