Discussion in 'ID Needed' started by KAPNEL, 6 Jul 2014.
Found this Red marks on a lot of my rocks now. Any idea?
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Is it solid or slimy?
It seems to be solid.
I had the same thing, i use scracthed it off and syphoned it out
Could just be red coraline algae. I have it too. But let the experts decide..
Also interested in what it is, we also have a few spots on 1 or 2 of our rocks
Hard as rock but can be scratched off: coraline algae
Soft and slimy: cyano bacteria
Looks like cyano
brushed mine off for a couple of days and i fed my fish a little bit less
Can siphon it off on your next waterchange. But it will come back.
Difficult to id from pics. If it disintegrates and gets broken up by flow, cyano, but I think this is something else.
Could be Peyssonnelia, in which case, lets hope it grows into its glorious table top shapes if it is...
I reckon Irie is on the money. I have this in my tank. its actually really pretty when it takes off and starts to plate.
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