Please help! Is this a worm I should be worried about? Don’t

Can anyone please tell me why my Zebra Danio keeps burying himself?

Hey cuties, me again with another censored-for-privacy double

*New post with video of one of the bichirs* I have 2 Bichirs

A Little Privacy Please.

Urgent please help

My fish are dying please help

Please, help! My neon tetra is swimming on its side.

Please tell me this isn't Whirling Disease.

Please help! Nem issues, potentially decaying?

Urgent need help ASAP betta stuck! (NSFW) please read description.

Please help?