im not sure if its carbon inside the cartridges, but yes its like a double white screen with smaller rocks inside, ive thought they were just gravel the entire time,
I also keep very large catfish and a lot of large CA/SA cichlids, so
large water changes happen in all of my tanks, I change 75%
of every tank every sunday, including all fry.
But again this was the only tank to date, the only think i could think of was either internal or feeding the wrong food, Ive always used the if theyre still eating its going to be OK mind setting, which in this case every one of them ate all the way up until they died. Another thing that was very weird they all died within a 24 hour period
which i think is very curious. This is the first time anything like this has ever happened. Sure ive lost fish before, but its very rare for me to lose any fish in any of my tanks.
And when I have lost a fish before I know exactly what happened.
Its obviously to late to do anything but im very skeptical and I am worried to try this again until
I know whats wrong.
Since they have died I drained the water and Ive been keeping a breeding pair of convicts and many small Managuense babies.
Thank you everyone for you guys help.
Mitchell