The Northwest Arkansas Aquarium Society is an organization formed to bring together the aquarist community in Northwest Arkansas and the Ozark region. Our members range from new hobbyists to long time breeders, and we keep a large variety of fishes.

Come to a meeting! Learn about fish and make friends with fellow hobbyists.

Make a donation

Our nwaas.com website is free for use by all aquarists, even those who are not members of our in-person club. Please consider donating to us to help defray the costs of maintaining the domain and server for everyone. The transaction is secure.

To join or renew membership, please use the "Join or Renew" button elsewhere on this page.

Latest members

Username Joined
edezurik 27 Sep
Chuck1 24 Sep
tglilly 22 Sep
chocdonutlvr 15 Sep
Yacon12 04 Sep
Bears423 04 Sep
lcrow 28 Aug
saclark69 28 Aug
Angel2016 21 Aug
tchanasty 01 Aug

Support Your Local Pet Shop

NWAAS is extremely grateful to the local shops that let us post our meeting announcements in their stores. Support your local pet shop!

Seafari logo Seafari
Rogers, AR

Worlds Under Water logo Worlds Under Water
Fayetteville, AR

Petco Logo Petco
Fayetteville, AR

Rogers, AR

Petsmart Logo PetSmart
Fayetteville, AR

Rogers, AR

Quality Pet Supplies logo Quality Pet Supplies
Rogers, AR

Link to us

Please feel free to link to nwaas.com. Use the following HTML:

NWAAS Fall Auction

Vote Checkbox  BREAKING NEWS! There will be a 100% Seller / 0% Club Split for this auction! The club usually takes a 30% cut to fund our programs for the following year, but our coffers are full. So sellers will get to keep 100%, this time only, as a thank-you from NWAAS. Full auction details below:  

  • NWAAS Auction
  • Snag some bargains!
    Sell your excess and make money!
    Open to everyone!
    Anyone may buy and/or sell!
    Fall Auction Poster

    Click HERE for auction location and map.

    Click HERE for auction rules.

    Click HERE for first-time bidder and buyer tips.

    Click HERE for seller registration information.

    Click HERE for buyer registration information.

    Click HERE for further details and late-breaking information.

    Click HERE for a downloadable poster that you can print and
    distribute to help make this the best auction ever!


  • Featured Critter
  • Marbled Crayfish (Procambarus spp.)

    Marbled Crayfish

    Vital Statistics




    Origin: unknown, probably southern United States

    Size: 4.5 inches total length

    Temperament: relatively peaceful, but may catch small fishes

    Sociability: keep singly or in groups

    Breeding: parthenogenic; i.e. self-cloning

    Sexing: all females; no males

    Diet: primarily herbivorous omnivore

    Water Chemistry: pH 6.0–8.0; dH 5–19

    Temperature: 72–78°F


    The marbled crayfish was first discovered in aquariums in Germany. You may also see this animal sold as marmorkrebs, which is the German word for “marbled crab.” The species is unknown, but DNA testing suggests that it is most likely a form of Procambarus alleni, the Florida crayfish commonly sold in stores. A blue version of P. alleni is most often sold in stores, and some marbled crayfish display a fair amount of blue coloration, too.

    The marbled crayfish is very unusual in that it is parthenogenic, which means self-cloning. All known specimens are females and you only need one to get babies. They produce eggs that develop into clones of the mother. The crayfish can be quite prolific, producing up to 200 eggs every week and a half! NEVER EVER RELEASE YOUR MARBLED CRAYFISH INTO THE WILD! It only takes one to develop a population that can crowd out the local species!

Join the Club or Renew Membership (Pay Dues)

The Northwest Arkansas Aquarium Society is not just a free online forum. We are a REAL aquarium society! We meet in person every month to talk about fish.

Click HERE to view the benefits and details of NWAAS membership. New members can use that page to join our society. Existing members can use it to renew membership.
Join the Club or
Renew Membership

Join the Club




remember me
hide me

Who is online



Most users ever online was 97 on Sat Sep 21, 2013 9:28 am

Registered users: edezurik

Legend :: Administrators, Global moderators

Site contacts



To email officers, click HERE.