SOS! TISSUE NECROSIS!
- Thread starter Brandon McHenry
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OP
OP
No I do not have any type of controller, temperature is monitored with a digital thermometer and pH is done with a test kit twic a day on my testing days. It renages from 7.8-8.0. I know for a fact that aerating water with house water lowers the pH and outside air raises it, but I was under the impression that I shouldn't have to worry about pH where it is.
I'm inclined to say it's not white band. I actually haven't had any drastic changes in parameters. All changes to the system were made over weeks/months. I've seen white band in person and my professor is actually a leading expert in coral diseases and he did his dissertation on white/black band disease and we still don't even know the bacterium responsible. I just think that's a pretty large leap. But hey I could be wrong.
I personally don't believe the all of 7 is the culprit, I have seen RTN due to high alk over 8.5 DKh in Biopellet/Zoevit driven systems. I have run my tanks @ 6.5-7DKH for years with great results in color and growth.
Looking at the dark color of your corals I would think something else is at play and I do not not think it looks like AEFW. As others have said trim the affected corals, do several large water changes.
It could be a lighting adjustment issue are only the corals that turned brown after the light change effected? do you have any idea of a before and after PAR reading at the corals.
Take a small and have it triton tested (take sample before you do the water changes) to eliminate a chemical issue.
Looking at the dark color of your corals I would think something else is at play and I do not not think it looks like AEFW. As others have said trim the affected corals, do several large water changes.
It could be a lighting adjustment issue are only the corals that turned brown after the light change effected? do you have any idea of a before and after PAR reading at the corals.
Take a small and have it triton tested (take sample before you do the water changes) to eliminate a chemical issue.
OP
OP
I believe that an alkalinity of 7 is okay as well. Seeing as the ocean runs a alkalinity around there it's tough to argue with Mother Nature. I also am struggling to find pests so I'm not sure about that either. I actually did a 30% water change as that is the biggest one I could perform with my equipment.
All of the browning occurred after the lighting switch. The affected corals did brown out first but not all of the brown corals have been affected if that makes sense. As of right now I don't have a PAR meter for comparison unfortunately.
Bruce Burnett
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I wish you luck as most have had tissue necrosis and not sure why. Stability is the answer. Every time I have had it, always shows up within a couple weeks of a change, normally an alk change.
OP
OP
Thank you for all of the help I really appreciate it! I still as of right now do not know what caused the STN to occur but after only losing one piece it appears to have slowed/stopped on my other pieces and I hop it remains that way. I will keep everyone up to date on my situation and what happens.
OP
OP
Yes I could only manage 45 gallons due to the size of my mixing container but hey it was still 30%very good to hear water changes are your friend
OP
OP
I run carbon 24/7 passively, but I just cleaned out my phosban reactor for this incident and began running it actively.
rovster
Well-Known Member
You'll likely never figure this out. You obviously have a handle on what you are doing with SPS. This is NOT a pest issue. It's something in the water. It's happened to me. Recently I've had it happen and I also added some t5. I had 2 corals that went from super healthy and colored to white in s few days. I think that changes just mess with the water dynamics and some corals just can't handle it. I've also noticed that corals in bacteria driven systems tend to be more "sensitive" to these things. Best thing is to just keep doing what you are supposed to be doing, maybe up the waterchanges but don't go crazy as that can upset things as well.
Macdaddynick1
Valuable Member
Oh god that looks like my tank when I was going ULNS . also I thought it was some kind of bad bacteria etc. I've killed my acros like that too. Here's a bad news , you won't save any of the acros that started rtn, not even the frags from those colonies ,don't try. Here's a good news that's not aefw, or pests or bad bacteria. That's you starving your corals, I wish someone told me this when it was happening to my tank. Your nitrates and phosphates are too low. The acros are starving, you basically made it too clean . Here's what you do. Cut your carbon dosing ( whatever it is you're adding as a source of bacterial food , I didn't have much time to read, then remove all of the RTNd acros, then go get some aminos, I'm not advertising those but you need something, I used restor, then feed some mysid shrimp but don't wash them. Once you cut your carbon dosing to almost nothing or stop, turn off your skimmer. I've had exactly the same problem trying to carbon dosing, and oh man I feel your pain. It's a devastating site , when you look at your tank and you have no idea how to fix it. Also raise your alk when you start feeding more, just by a little bit. If you have any questions hit me up.
