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Results 1 to 7 of 7
  1. Default Cray compatiblity?

    0 Not allowed!
    Howdy, I am setting up a 75 gal and would like to know what sort of tropical fish you could have with a Blue Knight Crayfish(Cherax destructor). So far I know that these guys are tropical and about their care, but I would like to know what fish are safe with this species.
    The only reason people get lost in thought is because it's unfamiliar territory.

    One 75 gallon: Senegal Bichir, a Reed Fish, 1 Fire Eel and a Rio Negro Pleco

    80 gallon: 2 female Hornet Cichlids and a Unknown Cichlid

  2. #2


    0 Not allowed!
    Either the fish will be food,or the crayfish will become food eventually.The mexican orange is relatively community safe.

  3. #3

    Join Date
    Jan 2011
    methuen ma usa

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    0 Not allowed!
    if i had a choice then i would do small live bearers, they can reproduce enough that you wont miss the ones that get eaten. although i think there are some fish that stay completely at the top, i think african butterfly fish are one.... but they are predators so idk if the cray would be safe.....
    I wonder if i plant one of my tiger barbs would the demon seed grow to a full tree?
    gotta love them bunnies!
    I.R.S.: We've got what it takes to take what you've got!

  4. #4


    0 Not allowed!
    Quote Originally Posted by skullduggery1
    Either the fish will be food,or the crayfish will become food eventually.The mexican orange is relatively community safe.
    Agreed. You can't really keep crayfish with fish; someone's got to go. That being said, you could just throw 30 guppies in there. In the end you'll probably come out with more guppies than you can handle.

  5. Default

    0 Not allowed!
    i can tell you you most certainly will i have a cray in with my mollies and she doesn't eat nearly enough that i don't have to still feed the fry to my large tank :3
    10gx2 brackish & applesnail grow out
    60gx2 - Crayfish snail male guppy holder/yabby craw
    75g (long) -red fin shark, golden angel fish Ghost shrimp neon tetras
    40x2 snail tank. / texas cichild

  6. Default

    0 Not allowed!
    I have a crayfish with snails, neon tetras and jumbo danios he ate two of the tetras and one of my plants so far. I'm surprised he hasn't got the snails yet, I've seen him try but so far unsuccessful.

  7. #7


    0 Not allowed!
    Hatchetfish always remain at the top unless ill (then called food and it isn't pretty how a crayfish kills but that isn't the point, I guess. )
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:

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