Convicts, tiger oscar, jack dempsey

  • We are currently upgrading MFK. thanks! -neo

Garrett Wise

Feeder Fish
MFK Member
Nov 30, 2016
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I recently got two convict cichlids for my 45 gallon tank but its a little empty specially since they are still only about 1 inch each. I was hoping to add a tiger oscar and a jack dempsey. would this combination work? I know that convicts can be very aggressive but they are both females so I was thinking this would help since there is no breeding related aggression.
 
In a 45 gallon I would say no. Oscars grow fast, big, and make a lot of waste. I would get a school of barbs, tetras, rainbows, or livebearers for dithers. Wait until you have a larger tank before you get the jack and Oscar.
 
If these combinations will absolutely not work, suggestions for other large and colorful fish would be greatly appreciated.
 
I have a friend that was offering to give me her 75 gallon tank, but i would have to wait till she gets back from traveling abroad (about 1 month). would it be possible to keep them in my 45 gallon for that long and move them once i get the new tank?
 
In a 45 gallon I would say no. Oscars grow fast, big, and make a lot of waste. I would get a school of barbs, tetras, rainbows, or livebearers for dithers. Wait until you have a larger tank before you get the jack and Oscar.
i would be interested in some of these fish but all the research i have done has said that the only fish that can generally survive the convict aggression are fish that are significantly larger than the convicts
 
75 Gallon would be okay for 1 oscar only, by ideal but could be done.
In a 45 gallon I would recommend convicts, sajica, or rainbow cichlids. There is a lot of cichlids that max out at 5-6" those would be your options. An oscar will grow fast and outgrow that tank in a month or two.
 
I would think some neets would certainly hold their own. The oscar wouldn't work, but the jd could if your upgrading to the 75
 
The would all get along fine... in a much larger tank. For a 45g, there are a lot of fish that can get along fine with them. They hold their own but unless they are breeding they are not typically that aggressive.
 
My last question is that my female have been taking turns laying eggs and seem to be simulating a pair taking turns laying eggs and both protecting the nest. If they continue to do this would they still display to aggression to other fish as if they are actually breeding?
 
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