Cons are super aggressive. At least mine was, he killed a 6" jag when he was only 2.5".
the new male jd is 3" (alot narrower than the tall fat con) and my male con is 5 1/2" including tail fin (i dont know if u include the tail) im thinking the jd is younger than a year.. my con is def an adult but was beat up by another male when i got himi had to nurse his tail back which was gone, and he cannot see well.. i have a hard time getting him to see his food.. i had hoped he wasnt going to be the prob!! it was the new fish i was worried about? i was wrong obviously??!! my con has lived with dwarf guarami, three month old baby cons, a pink tetra, and two snails.. till now has NEVER shown aggression. im worried about baby jd for he is hiding and i cannot feed him
if u agree i will put my con in a 29 gallon permanently, and have baby jd grow out in the 55 gallon.. thanx all this is site is keeping my sanity and my fish alive!! common sense and instinct only go so far, im only a year and a half experienced, and i dont want that to be the cause of fish tank wars in my livingroom!! lol
Thats your problem, that convict is his adult size and the JD is still a baby, as you already know, i would actually put the JD in the 29 (depending on the fish that are in there) until he is around 6'' or so, and without the con the JD should start eating again, than after the JD is large enough to keep the Con from attacking him, and those two could probably live in that 55 if you kept up on water changes, just make sure the JD is bigger that the Con when you put it back.
When an adult Cichlid has been established in a tank for some time it's virtually impossible to get them to accept another Cichlid unless it's a mate. Even if you have a peaceful Severum and add a nasty Jag, you can bet the Jag would get bullied at first, even tho it should be the other way around. No matter which one is the strongest or more aggressive, one of them is stressed and confused in a completely unknown environment, and the other sees the whole tank as its territory. It's a huge disadvantage for the new fish.
My advice is put the Convict in the 29 gallon tank, re-arrange the 55 as much as you can, add new caves, move driftwood, add new plants, lay it all out differently, clean everything and change as much water as possible... then add the JD. A week or so later when you feel the JD is comfortable, try adding the Convict and monitor the "visit", if he tries to bully the JD, move him back to the 29, and keep trying. This way you will turn the tables around and it will be the Convict entering a new territory, but since the JD is too small to be a threat, you should be fine. Good luck and keep us posted.
i have put the con in the 29 with baby cons.. how do i feed him and the babies without him thinkin they r food? i have a variety of different kids.. micro wafers, floating wafers, medium algae pellets, frozen blood worms, and regular flakes.. i just dont want to dirty the tank or over feed!!
^^ i agree, if they cant sort it out today and i separate them, they will stay separated![]()