The ASHCO Skimmer is the bi-monthly publication of the ASHCO aquarium society. Correspondence concerning this publication should be addressed to Valarie Swanson. Advertising space is available in the ASHCO Skimmer. Please write for a rate schedule. Original articles may be reprinted providing credit is given to the author and the club and a copy of the publication in which the article is reprinted sent to the ASHCO Aquarium Club. Opinions expressed by the author are their own and not necessarily endorsed by the club or it's members.