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    bigdubb's Avatar
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    Brain coral bleaching help!

    I have an LPS brain coral in my tank. For several months it was doing great. IT would baloon up during the day and go back down at night. Just about a week or so I noticed it expelling some brown stuff, and again tonight I noticed it again. Seems to be expelled from the three 'mouths' on the coral.

    I am rigorous on my water changes and recently tested. Everything looks good.
    Nitrates - 1ppm
    Nitrites - 0
    Ammonia - 0
    pH 8.3
    dkH - 7.62
    Calcium - 450
    Magnesium - 1100


    I know alkalinity is a bit low, and have been playing with the time on my dosing pump to get it at a consistent level.

    I'm running carbon and GFO. Carbon gets replaced every week, and the GFO gets replaced when I notice a change in the algae on the glass, which is typically every two weeks or so.

    Photo of it expelling the brown stuff.

    Photo of how it used to look.

    I tried to include the photos, but they were too large, had to link instead.

    All of the other corals seem to be doing great. My neon green candycane is getting to the point where some of the heads are starting to split. My xenias have split once already and are growing great, The RBTA has been growing continuously, my cleaner shrimp just molted for the 4th time, everything else is doing awesome from what I can tell.

    Only thing I can think it 'might' be is that I switched GFO (switched from BRS high capacity to Coral Vue GFO to save a bit of money) and this new GFO is virtually impossible to keep fines from circulating through. Its a very soft GFO and IMHO is JUNK! Whatever the opposite of recommend highly is what I would do for that GFO.

    One other thing I did was switch out my bulbs on my T5s.
    Initially I had (all HO):
    - 1 420/460k
    - 3 10000k
    - 2 Antic

    Switched to:
    - 4 ATI Blue
    - 1 ATI Purple
    - 1 ATI Coral

    Any help would be appreciated.
    Attached Images Attached Images

  2. Top | #2

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    Normal and expected. It's just waste. Coral looks perfectly fine in the pic.

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    Fragtastic Reef's Avatar


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    Coral is bleaching from light from the looks of it. Put into a more shaded area. The new bulbs you put into the light fixture put out WAY more PAR than the previous bulbs you had on there.

    Also as a note: The Coralvue GFO is the same GFO to my knowledge as the BRS. I have sold both and used both and had the same results. You may want to make sure your not tumbling it too much.

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    Oh, I was looking at the good pic. Like Garrett mentions place it in more indirect light. But I wouldn't worry about the expelling, that's just waste.

  5. Top | #5
    bigdubb's Avatar
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    Quote Originally Posted by Fragtastic Reef View Post
    Coral is bleaching from light from the looks of it. Put into a more shaded area. The new bulbs you put into the light fixture put out WAY more PAR than the previous bulbs you had on there.

    Also as a note: The Coralvue GFO is the same GFO to my knowledge as the BRS. I have sold both and used both and had the same results. You may want to make sure your not tumbling it too much.
    Thanks, moved the coral to a shaded overhang, I'll keep an eye on it for a few days and see how it does.

    I wonder if the difference is between the high capacity vs. the normal stuff. I did have to rinse it significantly and it seems like its barely at a tumble. Maybe it was just more diligence on my part to get the fines out.

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    ConnorG's Avatar

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    This happened to my brain and I could never seem to keep it happy..... They do like lower light and I just could t get him in a shaded enough spot...


    Sent from my iPhone using Tapatalk 2
    It's not a hobby...........it's a lifestyle

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    High capacity is harder so less fines, pulls out more phosphate for the same volumne, the other plus if you do regenerate you can regenerate the high capacity more times than the regular.

    Especially starting out, you use less media and change out more often. Once phosphate levels are stable then can go to a more less often routine. Me personally, I would never run GFO without a good ulr hanna checker to know exactly whats going on.

    Bulb choices can also make if fade to pastel. Too many aquablue specials or figi purple bulbs for sure can cause a gradual shift to pastel.
    Last edited by David Grigor; 10-30-2013 at 08:39 AM.

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    Fragtastic Reef's Avatar


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    Actually I understood that high capacity GFO is more porous making it more brittle and causing more fines. That is what makes it High capacity from what I have always understood being more porous it can absorb more PO4. Personally I never like running GFO unless you absolutely have to.

    As DG stated also I would not run GFO unless you are positive you need to! GFO is expensive for what you get. I ran it for years on my 180 gallon SPS dominated tank, and after I took the GFO offline the corals almost seemed better and grew faster. With regular maintenance and high flow, plus a good skimmer its not always needed.

  9. Top | #9
    bigdubb's Avatar
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    Well... my brain coral just isn't making it.

    I can't find any where in my tank that isn't too high light. So, rather than this thing dying, I'd much rather it go to a decent home. So, if you want it, it's yours. You just got to come and get it. I live in Crystal.

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