Mississippi fish guy Posted September 6 Share Posted September 6 I recently found a few of these on some plants I collected from a pond. I was wondering what this is and would it be a problem if I’m colony breeding pigmy sunfish? Also are water mites a problem because I found those in the tank as well. 1 Link to comment Share on other sites More sharing options...
GoofyGarra Posted September 6 Share Posted September 6 Those are Hydras, a freshwater cnidarian micro-predator. They can be an issue with shrimplets and small invertebrates but I think fish will eat them. 4 Link to comment Share on other sites More sharing options...
Guppysnail Posted September 6 Share Posted September 6 There are many types of hydra. Most are not an issue even in my hatch tanks. However there are 2 varieties I’ve dealt with that can be a problem once they become populous. One is white the other a brownish. The tentacles are longer on those and they generally get larger. Your potentially look like the brown ones. Those can nab new hatches. 1/10 (.1) gram per 10 gallons if fenbendazole clears them right up. I use it often as those become overzealous with my daily live bbs feeding. Shrimp and fish safe but not snail safe and it will be a few months until the tank is again snail safe. water mites=great food. 1 Link to comment Share on other sites More sharing options...
Solstice_Lacer Posted September 7 Share Posted September 7 A while ago when i had hydra on my glass i put a tiny bit of hydrogen peroxide on a sponge and wiped them off. They never came back 3 Link to comment Share on other sites More sharing options...
DavinCantu Posted yesterday at 06:02 AM Share Posted yesterday at 06:02 AM Thanks for answering, I also want to know it. Link to comment Share on other sites More sharing options...
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