Emergency help! Tank invaders

[Sandrago]

Have just emptied my fry mesh tank into my 10 gallon with a new divider. Fry getting big. A few hours later i checked on fry and noticed very very small white threads. With a closer look...they are white worms! And while looking around i also found very small creatures similar to tadpols with shorter tails and curled antennae. These dart around. They are everywhere! The only thing ive done lately is buy a few plants from petsmart about 2 weeks ago. What are these? Will they kill or hurt my fish and fry? What can i do to get rid of them? The worms cling to the side of the tank and the creatures dart around i am not mistaking these darting creatures with fry. The other fish dont seem to notice so they arent trying to eat them. Please help

 

[boadams87]

They are called hydra. You brought them in from somewhere. Your fish should eat them.

 

[FishontheRock]

They are called hydra. You brought them in from somewhere. Your fish should eat them.

Not hydra, hydra are benthic. They are like anemone and don't swim. Freshwater Copepods maybe.

 

[boadams87]

Oh ok. I missed that

 

[FishontheRock]

The white worms are likely planaria. They and Copepods are evidence of overfeeding.

 

[boadams87]

Where do they come from?

 

[Sandrago]

I did some research. They are definitly copepods and planera. I am quilty of overfeeding the fry. Read that they require much more than adults. I will clean the tank soon. Now that i have a divider in there the adults should start eating these things. Fry probably have another month till i can take divider out. Im kinda glad they are there. Im sure the fish enjoy hunting and chasing them.

 

[Sandrago]

Planaria. Sorry for that