I was looking at my rocks today and I noticed that the entire underside of one of my rocks is covered in what looks to be a clear hair waving in the water flow. It's short, covers the rock. Any ideas? I tried to take a video but it won't let me post it.
What is on my rocks?
- Thread starter audikers
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tankaholic
2500 Club Member
tankaholic
2500 Club Member
Does it loom something like the pic i posted....sorry its not a better pic...i think i might have a better pic...we were told its hydroids or something that started with an "h"
yea, they have stingers. Ive had a few types, some are nasty, some just go away after an Initial bloom.
the bad colonial ones sting the heck out of them like aiptasia. Some like the ones in the pic appear to do nothing.
The pic is fuzzy but Id bet I have the same ones right now.
Lionfish Lair
Renee
They're aren't digitate hydroids, but are indeed hydroids.
Lionfish Lair
Renee
Oh sorry, I didn't realize the photo didn't belong to the OP.... carry on O.O
Rob Lion
Active Member
I have it too...
I think this is what the OP is referring to... (not my pic)
Its not animal, it's either filamentous bacterial or fungal IMO.
It is only on the under side of live rock, in good glow areas, out of light.
It seemed to start after I tried bakers yeast or Dr Tim's waste away to fend off some horrible diatoms. (which didn't work)
It doesn't appear on all rocks, only but about 10% of them, over the past month it seems to be receding, I don't see any snails or hermits interested in it.
You can not syhpon it off, or wipe it off, but it does brush off with a tooth brush. Doesn't seem to do any harm but I do not brush it incase it spreads....
But I would love to know what it is so that I can get rid of it and stop it coming back.
In general, my water is very stable parameters of
temp 80 oF
1.026 SG
8.9 dkH
430 Ca
1300 Mg
0 NH3
8-10 NH4+
0.2 NO3
0.002 PO4
400 K
No algae in DT, just a couple of feather (non bryopsis) tuffs on 2 rocks I can't remove or safely get H2O2 too.
Refugium, spinning chaeto, dragons breathe. Marine pure 8x8x2 block.
GFO and GAC and skimmer.
Feed washed frozen mysis and cyclops only.
Dose Alk, Ca, Mg, NOPOX (when needed, this all started before dosing any carbon) and Red sea colors A B C D.
I have tried Korallen Zuch - cynoclean = no change
On googling, possible cures may be H2O2 or Dr Tims waste away.....
Any help really appreciated!!!
I think this is what the OP is referring to... (not my pic)
Its not animal, it's either filamentous bacterial or fungal IMO.
It is only on the under side of live rock, in good glow areas, out of light.
It seemed to start after I tried bakers yeast or Dr Tim's waste away to fend off some horrible diatoms. (which didn't work)
It doesn't appear on all rocks, only but about 10% of them, over the past month it seems to be receding, I don't see any snails or hermits interested in it.
You can not syhpon it off, or wipe it off, but it does brush off with a tooth brush. Doesn't seem to do any harm but I do not brush it incase it spreads....
But I would love to know what it is so that I can get rid of it and stop it coming back.
In general, my water is very stable parameters of
temp 80 oF
1.026 SG
8.9 dkH
430 Ca
1300 Mg
0 NH3
8-10 NH4+
0.2 NO3
0.002 PO4
400 K
No algae in DT, just a couple of feather (non bryopsis) tuffs on 2 rocks I can't remove or safely get H2O2 too.
Refugium, spinning chaeto, dragons breathe. Marine pure 8x8x2 block.
GFO and GAC and skimmer.
Feed washed frozen mysis and cyclops only.
Dose Alk, Ca, Mg, NOPOX (when needed, this all started before dosing any carbon) and Red sea colors A B C D.
I have tried Korallen Zuch - cynoclean = no change
On googling, possible cures may be H2O2 or Dr Tims waste away.....
Any help really appreciated!!!
Leto987
Community Member
I have the same issue.. looking on google, for me at least wasn't much help.. some threads would say it's clear hair algae because in a low light situation, some say sponges, some say it's a fungus. The picture looks like exactly what I have mostly on the underside of my live Rock. Not really sure how to deal with it.
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