How to keep my archers stress free one minute there perfect then there black then there fine again I haven't got them figured out yet. All my other fish are perfect as is the water the only thing is my mudskipper died and I'm not sure why. No one picked on him and he had a turtle pad should he have more land? Its an all brackish tank two fiddlers dragon dojo two baby angels cat two cat sharks and the two archers I feed the archers naturally with live crickets on branches so they can shoot them down.