PlanetCatfish.com

hi, im new to this site as i find thise site amazing because it's very specific unlike other fish forums.SO this is good.i have a question that hopefully will be a yes/no question. I have a columbian shark (Arius seemani), will it be compatible with my JD?

Here are two links here at PC. My guess from the info the answer would be no.
CotM

Cat-eLog

does anyone have any experiece of thise fish as to care and their behavior, their feeding and all that.. apprantley, i did put the columbian shark with my JD and now they are bonding, i didn't get a chance to read ur post till now but why would it be a nono to put these fishes together?

An adult columbian shark is a marine or at the very least brackish water fish. If by "JD" you mean Jack Dempsey, these are an aggressive, Freshwater fish. When the Columbian shark reaches much more than six inches or so it is going to start to require increasing amounts of salt in the water...This will eventually kill your Dempsey. Good luck....My suggestion is to either get a tank that can be set up for brackish/marine or take the shark back to the store you got it from and ask for a store credit or exchange.[/i]

does this apply for the pictus catfish too (with lots of saltZ)

Ali1 wrote:does this apply for the pictus catfish too (with lots of saltZ)

Pictus catfish should be not be kept with salt, it's a freshwater fish.

As to wether the Jack Dempsey is going to be "happy" having the swimming around it is a different question... Jack Dempseys aren't exactly known to be friendly...

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Mats

Even as a juvenile, the columbian shark should have some salt added to the water. If you do have a pictus in the tank with it, the salt will burn the pictus (as a scaleless catfish, the pictus will not take kindly to salt).