They are very slow growing cichlids compared to other CA/SA cichlids like oscars, jags etc.......But I think (at least mine) they are far from fragile .......I was on vacation for a week and something went wrong with my tank ......wiped out everything(aro, flagtail, gourami) except the EBJD and a ornate bichir.........mine is a powerhouse and actually quite aggresive.....I tried to introduce a GT into the tank and all he did was beat it up(the GT was the same size).......so thats just my take on the species.......heres some picks of my 7" guy...........
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