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  1. Default discus compatibility

    0 Not allowed!
    I have 3 juvenile discus and I'm wondering what I can put in with them.

  2. #2


    0 Not allowed!
    Tankmates have to be carefully chosen, keeping in mind the higher temperature need of discus. What is the tank size?

    And is there any possibility of acquiring 2 or 3 more discus? Being a shoaling fish, the larger the group the better. There is also less chance of one dominant fish picking on another to the point of death, which can happen. Three males for instance, or two males and a female, would be likely to create this situation.


  3. Default

    0 Not allowed!
    its a 55 gallon which should give me more room for discus too.

  4. Default discus tankmates

    0 Not allowed!
    I have 3 discus in a 55 gallon.
    what are some good tankmates?

  5. #5


    0 Not allowed!
    As you have started two threads asking the same question, I have merged them into one
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL=""]

  6. #6


    0 Not allowed!
    The 55g is fine for the discus plus another 2-3 as I suggested previously. So now I'll offer some suggestions for tankmates.

    Corydoras catfish are good, but there are only a few that can manage with higher temperatures, one being Corydoras sterbai. Corydoras leucomelas is another that comes to mind.

    Upper level shoaling fish such as cardinal tetra (Paracheirodon axelrodi), rummynose tetra (the "brilliant" which is Hemigrammus bleheri). Some of the "Rosy" clade in Hyphessobrycon, like H. bentosi (the Robert's Tetra). If you aren't fussy about geographic regions (so far, all fish are South American) the Harlequin Rasbora will work.


  7. Default

    0 Not allowed!
    all of my discus are different types
    blue cobalt

    will there be any aggression if I add new discus?

  8. #8


    0 Not allowed!
    Quote Originally Posted by hobbyist245 View Post
    all of my discus are different types
    blue cobalt

    will there be any aggression if I add new discus?
    It is possible. But you said these were juvenile, and once they are mature is when new additions can be an issue. I really do advise a couple more though, definitely at least 2, but 3 is OK.

    The colour morph is not an issue, as all these are the same species, Symphysodon aequifasciatus [Heiko Bleher considers the true species of the "hybrids" to be S. haraldi, but we needn't go into that]. "Hybrids" is the common term used becvause the various colour morphs were developed by crossing fish from different wild populations, though they are the same species. Like may other South American fish, discus species have evolved differently according to their habitat.

    Last edited by Byron; 08-05-2013 at 03:19 PM.

  9. Default

    0 Not allowed!
    All right thanks I think I will get some more. 2 of them are only 3 inches and one is 2 inches

  10. #10

    Join Date
    Aug 2010
    Jacksonville, FL

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    0 Not allowed!
    I would say to not put anything else with the juvi fish until they reach 4.5in in size and keep the tank bare bottom. I would do a total of 6 discus, a single school of a tetra like columbian, runny nose or lemon, then you could do a 10 fish group of cory. Also could do a german blue ram or apisto group.

    Now - this is also considering you are willing to maintain your water changes, keep the nitrate under 10ppm and really care for those fish. I say 4.5in because they are almost full grown (they grow about an inch/mo). You dont want to put discus in planted enviroments unless you are getting at least semi adults or you have a high chance of stunting. What filtration are you using?

    Also I would always go to the same source you got your first discus from. Say if you got a pair from Malaysia then a pair from germany - they have completely different immune systems and can introduce a parasite that one is immune too and could kill your 3 fish now.
    FW: 1 45gal, 1 40gal, 3 10gal, 3 30gal all community tanks of different species
    Sw: 1 55gal, 1 30gal show, 1 29gal show, 1 20gal and 2 10's

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