Acropora tissue damage
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christwendt
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How old is your tank? They look okay not great but okay. RTN is fast like overnight completely white.Was looking at my acro frags the other day, and on the small one I see bleaching or RTN, and I’m seeing bleaching on one and browning areas on the others. Pics below
Mr. Mojo Rising
7500 Club Member
What are your parameters? Lighting and flow?
That color of algae over the white rocks indicate your tank is still going through changes. Acro's are the hardest corals of all, require super stable parameters, especially alk, and high lighting and flow.
That color of algae over the white rocks indicate your tank is still going through changes. Acro's are the hardest corals of all, require super stable parameters, especially alk, and high lighting and flow.
drezden88
New Member
Was looking at my acro frags the other day, and on the small one I see bleaching or RTN, and I’m seeing bleaching on one and browning areas on the others. Pics below
How old are the frags and your po4? This is just my experience. When my tank was around 8 months i started adding sps. Po4 was around . 03-.02. Well a few weeks later i was getting stn from the base up. After losing 3 frags i realized my po4 had zeroed out. I starting feeding high po4 coral food like reef roids. Got po4 back to around . 05-.03 and everything has been happy. Good growth and no stn since. From my point of view i was starving the frags.Was looking at my acro frags the other day, and on the small one I see bleaching or RTN, and I’m seeing bleaching on one and browning areas on the others. Pics below
SPS2020
2500 Club Member
From my experience and YMMV, ReefRoids do nothing for Acropora. You are better off feeding your fish more as their waste is Acro food (in most cases) and will naturally raise the PO4 in the process. Your PO4 is within range, just don't let it decrease from where it is currently. Your tank is still maturing at 7 months, not to say you cannot have Acros but they generally do well in very stable conditions. Flow, flow and more flow as well as good lighting are required as well. Just my .02
SPS2020
2500 Club Member
Show us a picture of your entire tank; that may give some more insight. There are many variables to STN, if indeed that is what we see. It's difficult to give you pointers until a bit more knowledge is gained from what's going on at present.
Are you doing water changes, how often?
Any recent additions to the tank?
Have you changed lighting or the schedule?
What is the lighting schedule?
Have you made any changes recently (hardware or other)?
How old are the frags?
Were they from a reputable dealer?
How many fish?
You see where I am going; there could be any number of things which could affect the growth of an acropora.
Are you doing water changes, how often?
Any recent additions to the tank?
Have you changed lighting or the schedule?
What is the lighting schedule?
Have you made any changes recently (hardware or other)?
How old are the frags?
Were they from a reputable dealer?
How many fish?
You see where I am going; there could be any number of things which could affect the growth of an acropora.
I think your tank likely just needs more time to stabilize. I’d keep doing what you are doing. If these acros don’t survive, try a couple more in a few months. A piece of real liverock might help your system, but it will likely just need time.
joeman829
Active Member
I do water changes every 2 weeks- 1 month, added another acropora and golden octospawn around 4 days ago, raised the light up from 6 inches to around 10 inches above the tank around 3 days ago, and that was when I noticed the bleaching, the affected acropora frags come from a reputable lfs and have been in the tank for almost a month, but the new addictions are from a not so reputable lfs, dead coral, algae, etc. The acropora I got had some bleaching on the base when I bought it and it hasn’t spread. Could it be a deisease that was spread to my other acros? Also I have a clown, fire fish, yasha goby, and a chalk bass and inverts
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You’ve already raised your lights so I won’t suggest that. I would not change anything else with the system. Let it ride. Add a piece or two of real live rock or even some rubble.
At some point, I would want to know what PAR levels are. I didn’t see what light you have, but still I would buy or rent or borrow a PAR meter to see what they are getting. Depending on their source, I would make sure they are eventually getting 200-400 PAR.
You could try to either cover any dead spots with super glue. Or even cutting off healthy pieces and remounting them. But, honestly I don’t know if either of those suggestions will help.
Again, I hope they make it, but if they don’t, try again later after you are getting lots of coralline algae growth.
