New Cornish Jack (Mormyrops anguilloides)
- Thread starter MyFishEatYourFish
- Start date
I just got this fish yesterday. It only wants to eat bloodworms at the moment. Any suggestions on the decor of the tank?
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No idea. Theres two species. The both look so similar
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they arent the same species, im not sure what you have there but its cool.
and no, unfortunately my cornish jack dissapeared. after a lil research i found out they grow reaaaally slow, wierd considering theyre reported to get 5 feet, and they are similar to aba abas, one of the fastest growing fish ive kept. i tried my best to grow him, for six months he was in 84 degree water and ate everything like a hog three times a day. the most i ever got out of him was a healthy looking fish though. he was even in a high current tank and i did bi-weekly 25% water changes. he just barely grew.
in my opinion though, we as fish keepers are doing something wrong if they grow so slow in our tanks. theres no way a fish like this grows this slow in nature. i think that these fish wont thrive without a ridiculous sized tank. if i were to try again i would get a 350 gal rubbermaid stock tank, chalk it full of plants and rocks, lots of current, and 50% cover with water hyacinth. then i would stock it with guppies and wait for a substantial populating of guppies to accumulate as well as snails. after im confident in the set up i would add no less than five 3-4" cornish jack. they are a schooling fish that i am convinced only feel comfortable in numbers, but they are waaaay too agressive and just plain mean to be in a school less than that. theyre main diet would be the guppies and snails supplemented with things like krill, earthworms, blackworms, and massivore. once the jacks were acclimated well enough i would add a population of less aggressive africans like kenyis and auratus. these wouldnt be food themselves but their babies would be.
i know this set up would hardly be suitable for viewing the little guys, but they are a nocturnal, schooling fish, that hunt in packs over a large area and dont like to be messed with. in a few years you may be lucky enough to have a healthy school of 18" cornish jack that are so used to you and their surrounding the swim in the open and eat during the day.
in conclusion, if you want a cornish jack you better be the most patient fish keeper in the world.
and no, unfortunately my cornish jack dissapeared. after a lil research i found out they grow reaaaally slow, wierd considering theyre reported to get 5 feet, and they are similar to aba abas, one of the fastest growing fish ive kept. i tried my best to grow him, for six months he was in 84 degree water and ate everything like a hog three times a day. the most i ever got out of him was a healthy looking fish though. he was even in a high current tank and i did bi-weekly 25% water changes. he just barely grew.
in my opinion though, we as fish keepers are doing something wrong if they grow so slow in our tanks. theres no way a fish like this grows this slow in nature. i think that these fish wont thrive without a ridiculous sized tank. if i were to try again i would get a 350 gal rubbermaid stock tank, chalk it full of plants and rocks, lots of current, and 50% cover with water hyacinth. then i would stock it with guppies and wait for a substantial populating of guppies to accumulate as well as snails. after im confident in the set up i would add no less than five 3-4" cornish jack. they are a schooling fish that i am convinced only feel comfortable in numbers, but they are waaaay too agressive and just plain mean to be in a school less than that. theyre main diet would be the guppies and snails supplemented with things like krill, earthworms, blackworms, and massivore. once the jacks were acclimated well enough i would add a population of less aggressive africans like kenyis and auratus. these wouldnt be food themselves but their babies would be.
i know this set up would hardly be suitable for viewing the little guys, but they are a nocturnal, schooling fish, that hunt in packs over a large area and dont like to be messed with. in a few years you may be lucky enough to have a healthy school of 18" cornish jack that are so used to you and their surrounding the swim in the open and eat during the day.
in conclusion, if you want a cornish jack you better be the most patient fish keeper in the world.
i forgot to mention, the accepted growth rate of this fish in captivity is about .5"-1" a year!!! were definitely doing something wroooooong!!!
by disappeared i suppose you're saying that it was eaten by the chichla because they outpaced its growth?
