Brown, tangled gha looking stuff

Deltec

Just John

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Sorry the picture is bad. It's the best I could do. Looks like tangled, brown GHA. Nutrients have always been low because I don't have any fish, but this has appeared. White spots are detritus I stirred up - it catches everything. Any ideas? (edit: This patch is about the size of a quarter)


1626882691615.png
 
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Fish Think Pink

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Sorry the pictures are bad. It's the best I could do. Looks like tangled, brown GHA. Nutrients have always been low because I don't have any fish, but this has appeared. White spots are detritus I stirred up - it catches everything. Any ideas?


1626882691615.png
Seems huge, but can't tell much else from photo. It didn't get that big overnight, so are you intending to keep it?

If not, then start getting in there and manually pull out. If it is on rocks you can remove, pull out and scrub with toothbrush. If rocks have nothing encrusted, living on it that you want to keep (corals) then dip in hydrogen peroxide.

Rule of thumb, however long it took to get that way, with continual work it should take that long to reverse... I find its better to get after something while still small.

Good luck
 
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Just John

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It's not too bad now. That picture makes it look really big because it's zoomed in. I just want to get it taken care of before it gets everywhere. Unfortunately, it is growing where my CUC has a hard time getting to it. I was just wishfully hoping to hear something like "That is xyz. Just dose with abc for a week". I can't take the rock out, so I may use the @brandon429 approach - get in there and scrape it down to bare rock with an old knife blade.
 
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