Hmmmm didnt think of that! My systems are 99% soft corals. And I have the brownest Acro's in town.
Quote "Last, but not least, soft corals in the system giving off toxins."
I had a smallish but fast growing Gorgonian in my system, which I got as a frag and was kinda attached to it. When Calfo saw my tank he commented on the toxicity of Gorgonians, citing that they amongst the most toxic corals on a reef. I didn't think much of it intially. It's a smallish piece and my tank is a fair size, and I run carbon 24/7. Anyway about 2 weeks ago I decided to take it out. There has been an improvement in the colours of the corals in the vicinty of where the Gorg was.. Interesting..