Can anyone tell me what these are?

[Fish Eat Fish]

Dang, nice pics. Those will naturally appear in your tank. Fry will eat them if your fish are breeding. They are also part of the reason why a lot of peeps like to keep "dirty tanks" for raising fry, cause a lot of those microscopic things tend to thrive in that type of environment so that the fry can have living food 24/7. Resulting in better growth rates.

I agree about the fry food but I would just like to discourage this practice as faster growth rates should not take priority over higher fish health.

ps. im not tryin to claim that Fish on Fire supports this method...im just saying that i dont

 

[pintius]

1st one looks like a paramecium, second looks like a wee copepod, like a new born daphnia

 

[BobCat]

Thanks for all the help guys. I thought I kept the tank pretty clean but the turtle is messy. Good to know that they are harmless though.

Have siphoned most of them out and added some mollies to feed on the rest.