Hey everyone, so I have a question about fin nipping. I have longfin zebra danios in my 36 gallon in with cobra guppies, some rainbow fish, some giant danios, Corys and a blue gourami but my longfin danios are getting fin nipped... The weird thing is they are doing it to eachother. Anyone know a reason or how to prevent this? I thought this was weird but maybe not... Just looking for some insight. Thanks!