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
KimandKasey 23 Oct
Pdsmith 20 Oct
Ladipyg 12 Oct
Chuckt 09 Oct
Gersh66 30 Sep
RuskinAdonis 28 Sep
edezurik 27 Sep
Chuck1 24 Sep
tglilly 22 Sep
chocdonutlvr 15 Sep

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 Officer Elections


NWAAS Elections at Next Meeting

Place your nominations now for officers and committee chairs. You can also volunteer to run for office and nominate yourself. Elections will take place at the November meeting (Nov. 12th, 2016). Go HERE to nominate.



New Newsletter Sign-up Form

Would you like to be reminded of upcoming programs, auctions, and special events? We've made it easier than ever. Look for the "Newsletter" link in the left-hand menu on our homepage and click it to sign up, or click HERE. We will send you an e-mail (approximately once each month), so that you won't miss out on any of the fun and eduction provided by the Northwest Arkansas Aquarium Society. 

  • 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: No registered users

Legend :: Administrators, Global moderators

Site contacts



To email officers, click HERE.