What’s wrong with my guppy

[Fishyfish413]

Hi! We recently got a guppy and his left fin is looking weird. It doesn’t look like ick but not sure if it’s a fungus/Illness or deformity. Tank is freshwater 20 gal, 79 degrees F, tap water(conditioned), ammonia levels 0, nitrate/nitrate 0 ppm. He can’t seem to move his left side fin and his gills look really red and swollen(more than his siblings). Any ideas?

 

[Jay Hemdal Verified Community Expert]

Welcome to Reef2Reef!

How long have you had the guppy?
What other fish are in with it? (I saw a danio in one video)

It could be an injury followed by a fungal infection.

I've also been seeing a lot of flukes on guppies from pet stores recently.

Jay

 

[vetteguy53081]

Looks like fin rot and fungus condition. Maracyn 2 would be my treatment choice