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- Oct 27, 2019
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I've been dealing with slow coral necrosis in nearly all my LPS and SPS colonies and frags for coming up on nearly a year now. I think I've thought of nearly every possibility of what this could be and I'm stumped. This is super demoralizing as I've now started to lose colonies I started as frags 5+ years ago and I'm getting to a breaking point where I want to step away from the hobby. Anyone have any ideas what this might be from? Any thoughts appreciated.
The Issue: Slow recession of tissue on most types of LPS and SPS. In faviids/chalices, coral slowly starts to lose flesh often starting at one side of the colony, which progresses over weeks/months to the rest of the coral. In Acros, tissue loss starts at the base and progresses up the coral. Zoas, mushrooms, Xenia, Euphyllia, and a couple other colonies I've had for years are unaffected. I think I've stopped it with superglue on a favia colony, but superglue/fragging has been ineffective on chalices. Dips in CoralRX, Iodine, and H202 have not seemed to make a difference
Things I've suspected:
-Parameters: Alk 7-8, Calc 410, NO3 ~4, PO4 ~0.05, PH 8.1-8.3, Temp 79. Have had 3 ICP tests done since the issues started and nothing out of the ordinary.
-Stray voltage: checked with a multimeter, nothing there.
-Predators: I have seen munnid isopods at the edges of my LPS where the recession occurs at night. I see fewer of these since getting a leopard wrasse 2 months ago. Issues with Acros, chalices, acans, favias seems to rule out black/red bugs, AEFW, etc. No fish or inverts that I've caught picking or that could be the issue. This is still my #1 guess but it seems a bit out there.
-RODI issues/chloramines: I'm using a 3 stage but have replaced all filters recently. 0 TDS
-Light: Orphek Atlantik V4. ~250 Par high up in center where I've put acros and sub-100 at corners/edges where I've put some LPS. Location doesn't seem to worsen the condition or make better.
I posted about this a few months ago and thought I had narrowed my issue down to the munnid pests. After getting a leopard wrasse and Mandarin and still having issues I'm not sure that's the case:
This is on a tank I set up in December 2019, and transferred my corals/rock/fish over around March 2020.
The Issue: Slow recession of tissue on most types of LPS and SPS. In faviids/chalices, coral slowly starts to lose flesh often starting at one side of the colony, which progresses over weeks/months to the rest of the coral. In Acros, tissue loss starts at the base and progresses up the coral. Zoas, mushrooms, Xenia, Euphyllia, and a couple other colonies I've had for years are unaffected. I think I've stopped it with superglue on a favia colony, but superglue/fragging has been ineffective on chalices. Dips in CoralRX, Iodine, and H202 have not seemed to make a difference
Things I've suspected:
-Parameters: Alk 7-8, Calc 410, NO3 ~4, PO4 ~0.05, PH 8.1-8.3, Temp 79. Have had 3 ICP tests done since the issues started and nothing out of the ordinary.
-Stray voltage: checked with a multimeter, nothing there.
-Predators: I have seen munnid isopods at the edges of my LPS where the recession occurs at night. I see fewer of these since getting a leopard wrasse 2 months ago. Issues with Acros, chalices, acans, favias seems to rule out black/red bugs, AEFW, etc. No fish or inverts that I've caught picking or that could be the issue. This is still my #1 guess but it seems a bit out there.
-RODI issues/chloramines: I'm using a 3 stage but have replaced all filters recently. 0 TDS
-Light: Orphek Atlantik V4. ~250 Par high up in center where I've put acros and sub-100 at corners/edges where I've put some LPS. Location doesn't seem to worsen the condition or make better.
I posted about this a few months ago and thought I had narrowed my issue down to the munnid pests. After getting a leopard wrasse and Mandarin and still having issues I'm not sure that's the case:
Mystery Coral Deaths
I'm going on about month 6 of slowly losing most of my LPS and SPS to tissue recession. My 70G tank has been set up for a year (was a migration from an established smaller tank), and I've frustratingly been unable to add any new coral as they just tend to die. In my acros its showed up as...
www.reef2reef.com
This is on a tank I set up in December 2019, and transferred my corals/rock/fish over around March 2020.