To describe what the last cardinal looked like, he was pretty beat up, fins all chewed, the bottom of his body looked "chewed" almost. I could tell he got pretty beat up. The never bother the hatchetfish though. I have not once noticed any aggression towards the hatchets, possibly becuase they are always at the top of the tank.
My tank had no ammonia or nitrite i constantly check that. The tank has been established for a little less than two years. I didn't overload the biolad with the cardinals, my tank was used to having a lot more fish.
I think my LFS takes fish back, but for no refund, doesn't matter but I don't want my tank to get ruined.
How many more hatchets should I get? I have 2 silver hatchets who have been in the tank since I set it up, and is it possible to mix them with 3 more marbled hatchets? Or will that be a problem. The hatchets have been my most healthy fish in the tank, despite their small numbers.
Lastly, what tetras could I get that won't form a problem. I was thinking like a small school of neons, a few rummynose.
