what would a male Hypsophrys nicaraguensis be like in a sortive community with rams and and maby 2 keyholes and 1-2 eartheaters and a bunch of big tetras in a 75G,would he be too aggressive for the rams and tetras,also it will be a planted tank
look at the other fish on the list the likely killer is a jag. not the nic. nics. will be ok with geos. & keyholes.Let me just point out here that four or five months is nothing and your nic is not full grown and your angel is deadSo maybe that combo isn't as proven to work as you think it is.