What could these be (56k)? hydra or bryozoans? - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 04-03-2010, 08:04 PM Thread Starter
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What could these be (56k)? hydra or bryozoans?

There are little umbrella or mushroomoid organisms attaching themselves to the tank walls and plants of my 29 gallon. I thought they were hydra at first but they don't have tentacles. I wipe them away but they come back the next day. Any ideas?

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Last edited by rushr; 04-06-2010 at 10:28 PM.
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post #2 of 12 (permalink) Old 04-03-2010, 09:04 PM
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I had that that, i drained the tank about 90% and let it sick for like 24hrs.... it was gone and has not come back but i may injure some plants :/
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post #3 of 12 (permalink) Old 04-03-2010, 10:00 PM Thread Starter
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Hmm...i may try it. Do you know if it's fungi or some little organism?
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post #4 of 12 (permalink) Old 04-03-2010, 11:25 PM
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I've had those before too, but I thought they were hydra of some sort. They showed up when I put some new driftwood into a tank without boiling it first, and went away after a few weeks. They never seemed to do any harm.
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post #5 of 12 (permalink) Old 04-04-2010, 02:31 AM
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Id ride it out before doing anything. usually organisms that bloom quickly alot use up their resources and die quickly too. of if you dont have any shrimp or snails methylene blue will work to nuke it.https://www.plantedtank.net/forums/sh...nize-them.htmlthis link will help you!

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post #6 of 12 (permalink) Old 04-04-2010, 03:47 AM Thread Starter
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They did spring up very quickly after i did some trimming and siphoning up mulm. Waiting it out seems like the best action though i'm still itching to know what they are. Thanks to everyone!
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post #7 of 12 (permalink) Old 04-04-2010, 03:55 AM
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maybe if you find out you could post it to the shrimp and inverts sticky on "whats that bug and how to recognise them. ask kyle t the administrator.
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post #8 of 12 (permalink) Old 04-04-2010, 04:08 AM Thread Starter
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thanks for pointing me to that sticky thread. i hesitated to post as i was wondering if there was a bug section but didnt find one when i searched.
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post #9 of 12 (permalink) Old 04-06-2010, 02:31 AM
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Wow Ive never seen those before. Looks like oil bubbles or something. Did you do anything different right before noticing them?
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post #10 of 12 (permalink) Old 04-06-2010, 03:54 AM Thread Starter
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I know what they are! Hydra pffft....the bubble shapes must have been some stage of development because now i see little tentacles waving from each clear stalk. I guess i have to get a gourami now I added rocks recently (washed and baked) but they showed up before that. I did stir up mulm and do a replanting. Perhaps they were always there and came out in big numbers from all the stuff floating around. Brown algae has come out to play as well (face palm).

Right at the middle you can make out their little tentacles
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post #11 of 12 (permalink) Old 04-06-2010, 02:47 PM
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Are they harmful? I think they're kinda cute, unless of course they're harmful.
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post #12 of 12 (permalink) Old 04-06-2010, 06:31 PM Thread Starter
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I have heard of them grabbing little fry with their stinging tentacles but they don't do much to adult fish. They can take away little organisms like daphnia that your fish would normally eat.

I posted this at the what's that bug? sticky. Now thinking they are bryozoans. Perhaps i should delete this thread?

Last edited by rushr; 04-06-2010 at 10:29 PM.
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