They seem to be rather rare in the fish hobby. I got 4 fry (.75"-1.5"ish) from imperial (sorry not sure if name's are allowed) and have not seen them there nor anywhere else since. In the roughly 3 months I've had them they have all but one died off one by one rather inexplicably. One thing is they were by far the smallest fish in the tank, with 3 starry night/bleekeri /paratilapia 2.5"ish, 3 red head symp 2.5" and a red devil 2.5"ish in a 90 gallon and all other fish are thriving and still going strong in the same tank. There were two larger one's (1.5") and two very small ones (0.75", maybe smaller honestly) and one of the smaller two died first and was found floating with a torn stomach, unclear if died or was killed, but was acting odd prior to this and not really eating and just swimming aimlessly around the tank. Then one of the two bigger ones began acting the same and just stopped eating and disappeared. The last large one seemed like a male and was super active throughout and would constantly be swimming the bottom of the tank looking for scraps and would compete for food with the other much larger fish, the last smaller one would hide in these floating plants as he was sooo much smaller than the other fish but was active and ate smaller food particles. The vibrant larger one then began to out of nowhere stop eating, I isolated him into a 40 gallon after 2-3 days of this and he died the next day 
. So I have one left, who was the runt of the litter and was doing great until 2 days ago and is not acting similar to the others, I moved him into the 40 gallon and he seems pretty active but is not eating, I tried treating the tank with gencure and some aquarium salt, I really don't know whats going on, these are literally the only fish out of roughly 25 other SA/CA that I have in 3 other tanks in the same house with similar setups (usually a canister filter plus aquaclear hang on the back and sponge filter). Maybe a stomach parasite? I try to do pretty regular water changes and filter maintenance so I'm at a loss. Sorry for the novel, I am new here
. So I have one left, who was the runt of the litter and was doing great until 2 days ago and is not acting similar to the others, I moved him into the 40 gallon and he seems pretty active but is not eating, I tried treating the tank with gencure and some aquarium salt, I really don't know whats going on, these are literally the only fish out of roughly 25 other SA/CA that I have in 3 other tanks in the same house with similar setups (usually a canister filter plus aquaclear hang on the back and sponge filter). Maybe a stomach parasite? I try to do pretty regular water changes and filter maintenance so I'm at a loss. Sorry for the novel, I am new here
