fish diseases

I have a 75 gallon tank with 1 convict cichlid, 1 jack dempsey, 1 "flowerhorn hybrid", 1 pleco and 7 emerald cory catfish. I realize this is not an ideal community and I have other large tanks for future transfers. My fish have been flashing semi-regularly for the past several weeks. Mostly my...

My flowerhorn has se black ring type mark on his head, I've been cleaning 75% and adding methyl blue and aquarium salt in every two days but it won't go away! It's been like this since last week, he eats only in the morning and rejects food at night. Pls suggest me a way to treat this disease.

I got recently red Snakehead I have few queries please help me out Do SH have scales /can I treat them with copper medicine? My Snakehead is discolored black not active laying on top?what to do. After buying him from store I have been feeding him with small goldfish he devoured like anything...

Hi All, I have 3 Oscar fishes of about 10" long in my 5 feet tank. Around 3 weeks back I have noticed one of the oscar's stomach was swollen slightly, initially i thought that was normal but the swelling has been increasing since then. The fish is not active as before, but to my surprise it is...

First let me clarify a couple of things: a) Fortunately few of the fish I have owned have faced serious health issues in the past, so I'm not at all an expert or even well-versed when it comes to medicines and treatments, which I have mostly viewed with some skepticism and only used when...