120 Gallon tank. Oscar+Dempsey+Anything?

  • Joshuaharestad
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Joshuaharestad created the topic: 120 Gallon tank. Oscar+Dempsey+Anything?

Got an oscar and a jack dempsey. Both young. Oscar is about 6 inches, dempsey about 3. Currently in a 75 gallon, but soon to be upgraded to 120 gallons. Oscar chases dempsey a little, dempsey doesn't seem too stressed about it. He has hidey holes. I would like to add one more fish, but I don't want to push the bio load or have fights. What do you think? I'd like a red devil but I'm a little worried about that. I know I can't add another male dempsey, and thinking another oscar would be too big. Thoughts welcome!
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OFL replied the topic: 120 Gallon tank. Oscar+Dempsey+Anything?

Don't add any more fish until you have got the larger tank up and established. Personally, I'd probably go with another cichlid. Maybe a fire mouth or even a Jade eyed cichlid which doesn't grow much more than 5 inches but are brilliant fish to keep with other cichlids that may have a semi-aggressive side to their nature. Having said that, I don't think Jade eyed cichlids are that easy to come by. See what other people suggest

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Suprd71 replied the topic: 120 Gallon tank. Oscar+Dempsey+Anything?

Should the 2 continue to get along ok, I would suggest that they will fill out a 120g just fine. Red Devil is a big no, as a mature fish it will kill Oscar and JD. Keep in mind that Oscar will outgrow the Dempsey by a 2-1 margin. An angry male Dempsey can still do heavy damage to an Oscar, but Oscars size and growth rate may keep the playing field somewhat level... for now. I strongly suggest waiting to monitor progress. And get the bigger tank asap.


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