I don't think this has much to do with water quality... especially if their bodies are left behind and their eyeballs are not. It seems more of a problem with your choice of fish.
I suggest you do some research on each type of fish you have in your tank. From there you will understand a little more about why mixing those types aren't very good.
I will give u some advice anyways.
Tiger Barbs should be kept in a school of 6 or more. Some reasons behind this are because if there are not enough of them, one barb will experience relentless hassle from the others. Also keeping them in groups brings down their aggression towards other fishes. Which bring me to my next point, tinfoil barbs should be again kept in group of 6 or more due to aggression issues(ps tinfoil barbs are some of the most aggressive barbs you can buy).
Bala Sharks school and therefore need a group. They also like to swim, ALOT. Therefore they need lots of room, plus they can grow to be over a foot long. I don't think they should be in your tank at all and not only because of that reason. This bring me to next issue in your tank. The Red Tail Black Shark is VERY territorial, any similar species or other territorial species in the tank will either end up dead or end up killing the rtbs.
As for your African cichlids... African cichlids are some of the most aggressive cichlids you can get. Cichlids are also territorial when breeding. Plus some of these cichlids can grow to be quite large.
Then to top if all off you have this passive slow moving large finned fish.
I really advise you to find a better home or even take some of the fish back to your LFS. Then come home and do some reading about what works well together. My thoughts would be to remove the bala sharks, remove the african cichlids(replace them with some new world cichlids, dwarfs are good there are also lots of medium agression cichlids out there. but don't get more then 1 or 2), remove the gouramis and add a few more barbs of each type.
I hope this helps you....
I suggest you do some research on each type of fish you have in your tank. From there you will understand a little more about why mixing those types aren't very good.
I will give u some advice anyways.
Tiger Barbs should be kept in a school of 6 or more. Some reasons behind this are because if there are not enough of them, one barb will experience relentless hassle from the others. Also keeping them in groups brings down their aggression towards other fishes. Which bring me to my next point, tinfoil barbs should be again kept in group of 6 or more due to aggression issues(ps tinfoil barbs are some of the most aggressive barbs you can buy).
Bala Sharks school and therefore need a group. They also like to swim, ALOT. Therefore they need lots of room, plus they can grow to be over a foot long. I don't think they should be in your tank at all and not only because of that reason. This bring me to next issue in your tank. The Red Tail Black Shark is VERY territorial, any similar species or other territorial species in the tank will either end up dead or end up killing the rtbs.
As for your African cichlids... African cichlids are some of the most aggressive cichlids you can get. Cichlids are also territorial when breeding. Plus some of these cichlids can grow to be quite large.
Then to top if all off you have this passive slow moving large finned fish.
I really advise you to find a better home or even take some of the fish back to your LFS. Then come home and do some reading about what works well together. My thoughts would be to remove the bala sharks, remove the african cichlids(replace them with some new world cichlids, dwarfs are good there are also lots of medium agression cichlids out there. but don't get more then 1 or 2), remove the gouramis and add a few more barbs of each type.
I hope this helps you....
?? We can sit and watch the tank and relax for hours and never notice these acts, but it seems the minute we turn our back, they're acting out Murder on the Orient Express or something !!!!!
