mouth rot

My Platy fish is the only adult fish in the tank & its top lip seems to have eroded it seems. It look sore and she’s been less active hovering at the top of the tank. There isn’t noticeable whiteness around the mouth and my water parameters are perfect. It’s making me super sad!! I want her to...

All fish in the tank including the silver dollar are super/relatively healthy. However, I noticed this (In the image) on or near his mouth. Water parameters are within normal limits. I change the water regularly every 10 days, gravel vac every month, clean the filtration cartridges every 10-15...

Hi all. Spent the weekend at the in laws house and a couple of the fish were pretty sick. I did a big water change for them as they ‘top up the evaporated water regularly’! (Difficult as it’s the brother in laws tank but he no longer lives there) and scrubbed the algae off of the glass and...

Hello again, me again ;), this is my swordtail and her mouth seems weird, is this a disease? Also she seems to be like this for a while now. water parameters: Ammonia: 0, Nitrite 0, Nitrate about 4-10 And sorry about the picture, this is the best I can take, I wait for half an hour and cant...

Can someone please help me? One of my Dalmatian molly fish is going to die if I can't figure this out. I have a 60gallon tank, with 35+ other mollies (they keep having babies and I don't know what to do with them... but that is a problem for a different day). The tank has been established...

Request Help Tank size: 40 gallons pH: Always a little low, from 6.8-7 ammonia:0 nitrite:0 nitrate:60 - Always this number or higher, I think it's just my tap water kH:40 (usually always, even with water changes) gH:120 (always too high...) tank temp:72~ Fish Symptoms (include full description...

Hi everyone,   I'm new to the forum and I signed up today to specifically ask (and warn) about planarian.   Last night I witnessed a horrible, terrifying scene, but I'll get to that in a minute.   My 6 gallon Fluval Edge was hit with a fungus outbreak a few month ago and two of my five neon...