Territorial Rainbow Shark
We have a 33 gallon tank set up. It has 6 tiger barbs, two medium sized plecos, and a rainbow shark.
Everything got along well in the tank for the first few weeks, but now the tiger shark seems to be very aggressive towards the tiger barbs. It keeps herding them to the corner of the tank. If they leave this area he speeds back over and forces them back into the corner.
It seems like he has claimed the entire tank has his territory. Is there a good way around this? There is a rock shelter that he could use as a cave, but he doesn't seem to have interest.
I would like to keep him in the tank but not at the expense of the other fish.
Thanks for any advice.