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Aquariums: Can I safely add 2 female Procambarus alleni (Blue Florida Crayfish) to my existing 180L aquarium?


Hi everyone
I’d really appreciate some experienced advice.

I currently have a 180-liter freshwater aquarium with the following stocking:

Current fish & inverts:

  • Betta splendens (male – Siamese fighting fish) (x1)

  • Corydoras julii (group) (x6)

  • Kuhli loaches (group) (x6)

  • Microdevario kubotai (x12)

  • Some snails (ramshorn / similar) (x6)

  • Recent baby snails (not sure on number)

  • Amano shrimp (x4)

The tank is fully running and cycled, regular water changes are done, and the fish are active and feeding normally.

My question:

Could I safely add two female Procambarus alleni (Blue Florida Crayfish) to this setup?

I am especially concerned about:

Aggression toward bottom dwellers (Corydoras / Kuhli loaches)

Territorial behavior

Risk to my Betta fish

Risk to snails

Whether two females will fight or coexist

Tank size being sufficient for them long-term

What I would love feedback on:

Is this idea realistic in a community tank like mine?

Would it likely end in fights, deaths, or injuries?

Would one single crayfish be safer than two?

Or should I completely avoid crayfish in this setup?

I want to make sure I don’t hurt any animals or stress the tank.

Thanks a lot for any experiences or honest opinions.



Posted by Lucky777_777

2 Comments

  2. Anonpancake2123 on

    Aggression toward bottom dwellers (Corydoras / Kuhli loaches) – They’ll try to eat them

    Territorial behavior – They’ll definitely be territorial and very aggressive to things

    Risk to my Betta fish – Life threatening

    Risk to snails – To them a ramshorn snail is a walking ice cream cone with a meaty center

    Whether two females will fight or coexist – Fight, maybe establish separate territories with enough space but fight nonetheless

    Tank size being sufficient for them long-term – It is sufficient

    Is this idea realistic in a community tank like mine? – Unless you want it to not be a community tank no.

    Would it likely end in fights, deaths, or injuries? – Yes

    Would one single crayfish be safer than two? – For the crayfish? Yes. For everything else? Not much more

    Or should I completely avoid crayfish in this setup? – You probably should. Crayfish try to eat basically everything.

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