My tank is 4ft, it holds 53 gallon and has an eheim 2217 filter.
I am contemplating another schooling fish species apart from the cherry barbs since I have an apparent stocking capacity of 87% with this list. However I don't want schooling fish like neons where they share a total IQ of 1 in a group of 20. I want something which is interesting to look at, something with interesting characteristics.
Give me your opinions and wisdom please, it is greatly appreciated and I ask you guys this because I don't want to harm or make uncomfortable any fish due to not researching properly and digging out the correct information.