dying fish

I need of help! I’ve had two places die within a week of each other. When I removed them from the tank they both had similar foul odor coming from their rectum. I have medicated the tank w Metrocleanse and Expel-P. Is there anything I’m missing before I lose the rest of my plecos in the tank?

I’ve been keeping fish for a while and have kept pretty much everything under the sun yet I have no clue what’s going on in my 75 gallon biotope. About 2 weeks ago I lost three juvenile red head tapajos each 2 days apart from eachother, all eating well, fully colored up, healthy looking fish...

how it started, I put it in a quarantine tank because of popeyes. as eye 'healed', move it back to the main tank. few hours after move back to main tank, spot it swim erratically, darting around the tank while body... not swimming straight horizontal. search similiar symptom, possibility cause...

So I just bought a used fish tank from a friend and the fish tank was completely gross, I’d say hadn’t been cleaned in a year or more, the back wall was solid algae. So anyway the tank came with a 8 inch goldfish in it, and anyway the goldfish has many problems now that it’s a new tank. I have...

I bought a 3-4" fire eel a month ago. I have a 30 Gal tank with 2 black molly, 2 dwarf gourami, 1 pleco, 1 african dwarf frog, 1 cory catfish, 1 male betta, and my fire eel (All fish are small right now). I don't have any sand on the bottom but I do have small gravel (I was gonna get sand soon)...

I have a 20 gallon tank with 4 black neons, 3 balloon mollies, a swordtail a platt and some shrimp. I’ve had the tank set up for about 4 months. Everything was going well. I decided to start a planted tank so I added some Caribsea planted substrate. I got some plants that were packaged and went...

Hi I have a 30 gallon fresh water with around 27 varied tetras 6 kuhli loaches, a small Pleco and 3 guppies. In the last three days a fish has died mysteriously, the first day one of my emperor tetras died and I decided (not knowing what happened) to dose the tank with mela fix and Pima fix. The...

Help us. Arowana Grande, *whimpers . Our fish, is dying. I think he has cancer. On its head and skin and gills and eye. He has made very important contributions to the tank society. But since the tank apocalypse, he is the only one left to survive. I dont even know ita gender. But pleaseee. Help...

It is a silver-ish arowana, around 12" and 3 years old. It's head was not like that yesterday. I also don't know if the white spots on its scales are natural, it had them for a while now. It has been breaching the surface of the water like its head cant sink since this afternoon. What should I...

Need help. Just purchased some ropefish a few days ago. Two have died. 3 are left. I have two canister filters, each rated for 100 gallons, filtering the tank. Biological media, carbon, and plent of mechanical filtration in both. Have done a lot of water changes to combat the fact that I added 5...

my 6 inch arowana is barely swimming and he seems really weak. He was fine this morning but when i came home hes really weak. I dont know what to do i cant test the ammonia or ph level cause i was planning on buying to tmrw. I just moved him into a new tank and i put in "prime" to remove...