African clawed frogs with uninvited colony of something

[Mel_]

Hi I'm Mel and for the past 6 months I've had these almost microscopic swimming hard bug things in my freshwater African clawed frog tank. The frogs are happy and healthy it seems but I worry that these creepy bugs are living inside of the frogs. I clean the tank regularly but these guys reappear after about 2 weeks after a full cleaning. I have looked all over the Internet for answers but nothing I can find resembles the strange web like colonies these things make on the tank decorations. Please help! Thanks
I'm new obviously and tried to link a picture to the post but I don't know if it worked

 

[Mel_]

Spreads like a virus

Posting in attempt to add photo

 

[FWFishTanks]

I see you are into frogs. Unfortunantly clawed frogs are not my strong point, but I can help you with anything you need when it comes to Pepes.