<a href=showthread.php?s=&postid=6948881#post6948881 target=_blank>Originally posted</a> by Weatherman
If it were a toxin, it would have affected all the coral, not just the Acros and Montis. So, bothering with UV and carbon doesnââ"šÂ¬Ã¢"žÂ¢t seem worth it. I just finished a pair of back-to-back 30% water changes (something I do every six months, anyway), and that had no effect.
You have a lot more experiance than me, so take this as it is ment, just a suggestion.
This statement, that I quoted, I don't compleatly agree with, here is an attempt at explaining my thoughts.
I know that in Fresh water plants, and some marine algaes, can releace alopathic chemicals. These chemicals work to inhibit other plant speices, (inhibit growth, or in some cases cause outright death), so the plant releacing them can gain more ground without worring about over-crowding or another plant blocking it's light. This is one of the reasons why a plant would live fine in one tank, but not in another. This is also one of the reasons refugiams with macro algae work so well at ridding the display of micro algae.
These chemicals are sort-of like loose cannons though, they will affect some plants/algaes more than others, and not effect some at all. Some plants can even inhibit themselfs if there are enough of the same plant in a single tank :lol: . It has even been said that macro algaes can also inhibit some types of stony coral (don't remember the specific speices at the moment though)
We know that stony corals do wage war on each other, we also know that the chemicals that they use for this war, don't effect the coral emmiting them. We also know that corals can wage war on one speices far more effectivly than another.
What I am wondering here is could the reason some of your corals arn't doing well be related to why I can't keep some plants in my FW planted tank? Is it possible that you have one coral emitting war chemicals (policipora maybe since it is doing the best and the other ones that you don't have problems with are closely related to it)? Is it further possible that the montipora and acropora are more sensitive to the war chemicals than the Stylophoria for example?
Let me know what you think of this rambling mess of jumbled together thoughts,.. since carbon is so cheap and easy, it may just be worth the experiment.
HTH,
Whiskey
