on friday, I noticed my molly was acting strange and I don't know why. he was laying on the bottom of the tank with his fins tucked in and not moving. The next morning he was dead. =/ The same thing happened to my honey gourami a couple weeks ago. No idea why. Please help.
Size: 20 gallon
Temp: 78 F
Fish in tank:
1 - Platy
1 - danio (I know.. I need more)
1 - Guppy
1 - Honey Gourami
5 - cherry barbs
1 - oto (I know.. I need more)
Tanks been running for 2 months. Was cycled with fish 3 weeks after set up. Didn't lose any fish during the cycle. The now deceased molly, Guppy
,danio, and oto was transferred from previous 2g tank. It also is sparsely planted right now.
I feed Tetra Min and Tetra Color, along with blood worms once a week.
The only thing going into the water is water conditioner.
I do a water change once a week of 25%, even though ammonia/nitrites remain at 0 and nitrates at 5-10ppm.
I'm hoping by finding out what was wrong i can prevent it for other fish. He also wasn't very competitive for food. I don't know if this would play a factor.