![](http://www.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?s=100&d=http%3A%2F%2Fforum.nanfa.org%2Fpublic%2Fstyle_images%2Fnanfa-32%2Fprofile%2Fdefault_large.png)
Small Anemone Looking Things in FW
#1
Guest_Elijah_*
Posted 02 June 2010 - 11:47 PM
Any idea what these might be? Can they cause problems for my fish?
Thanks!
#2
Guest_Kanus_*
Posted 03 June 2010 - 05:27 AM
#3
Guest_Elijah_*
Posted 03 June 2010 - 11:10 AM
I have seen Hydra pop up in some of my native tanks, but these look different. Hydra has a stem that attaches to the glass or plants, the things I am seeing are just a ball of outstretched tentacles around plant stems. They have many more tentacles than the Hydra I have seen- maybe a hundred or so. They are popping up all around this one tank I have.Those are Hydra, which are basically like freshwater anemones. They will sting and kill fish fry, but I don't think they would take down larger fish unless maybe in extreme numbers.
Tried to get a pic, but no luck with my camera.
#4
Guest_scottefontay_*
Posted 03 June 2010 - 03:23 PM
#5
Guest_Elijah_*
Posted 03 June 2010 - 06:14 PM
Yes. Blackworms.Have you ever put fed tubifex, blackworms or white worms to your fish?
Edited by Elijah, 03 June 2010 - 06:15 PM.
#6
Guest_scottefontay_*
Posted 04 June 2010 - 07:29 AM
The cherry shrimp had exploded hundreds of them...and the blackworms I had originally seeded had taken off as well. In addition to a fairly even carpet of wavy little worms ends protruding from the mud there would often be a large group (10-20) sticking out of a single hole left from an earthworm. They would stickout a very short amount. The entire tank bottom was a soft mud from the clay. If your tank is planted with a more coarse substrate the worms may be sharing the softer areas at the base of plants.
#7
Guest_Newt_*
Posted 04 June 2010 - 08:09 AM
#8
Guest_Elijah_*
Posted 04 June 2010 - 01:54 PM
Ah, this seems more like what I have. Vorticella is most likely what it is.Speaking of colonies, other possibilities include colonies of large protozoans such as Stentor or Vorticella, as well as sessile rotifers. Each "tentacle" in this case would be an animal.
I could not find specific info about this protozoa on fish. I am wondering if these can be harmful to my fish?
#9
Guest_Newt_*
Posted 04 June 2010 - 03:32 PM
#10
Guest_Elijah_*
Posted 05 June 2010 - 07:54 AM
Sweet. Thanks for the info!Nah, they strictly feed on smaller organisms and produce no toxins (as far as I know). Many fish like to graze on these little guys.
2 user(s) are reading this topic
0 members, 2 guests, 0 anonymous users