agression

I have a 100 gallon tank with several small tangs, a rabbitfish, a pair of leopard wrasses, two clowns, a canary blenny, and a pearly jawfish. there is a ton of live rock and places to hide. My tank has been stable with these fish for about 3 months now and I am thinking about introducing a...

I have a tank with a 5.5 inch desjardini, a 4 inch powder blue, and a 3 inch blue hippo. They were added at the same time and have been getting along with literally no aggression for about 6 months now. But in the last few days I have noticed the powder blue occasionally chasing the blue hippo...

So let me preface this by saying that yes my tank is small for those two tangs. They get along great and are just in the tank for algae control until I move them to my larger system. So so recently my female clown has become more and more aggressive. To the point where the male now has to...

Mandarin fish that I have had for about 3 months has lost part of its left front pectoral fin. his swimming ability does not seem to be impaired at all. Photos below, does anyone know what caused it and how to treat other fish are 1x coral beauty 1x bicolour blend 2x occelaras clown (small) 2x...