Nimbus

Help! My oto is having internal bleeding at the bottom. It hardly moves nowadays. Should I separate him from the main tank? The tank only consist of guppies, panda cordy and oto.

agabr123

oh poor little guy! yeah, i would QT him if you can....i honestly don't know what that could be or what could have caused it....how long have you had him?

what size tank is he in? what are your readings for ammonia/nitrite/nitrate? did you cycle your tank first?

Nimbus

I had him for two months and the tank is definitely cycled. It's a 40gal tank. Will measure the tank later.

Nimbus

The reading are all perfect. 0 for Nitrate and Nitrite.

Nick Goody

What are the readings for Ammonia?

Lucy

It would help the members if you could fill out your aquarium info. At the top click Settings-->Edit Aquarium Info.

With 0 Nitrates and not knowing your ammonia readings it doesn't look like your tank is cycled or for some reason is going through a mini cycle.
Unless it's a heavily planted tank there would have to be some nitrates.

How old is the tank?