Aquatic Information Center




Use of Formalin to Control Fish Parasites

Ruth Francis-Floyd

Opening Paragraph:

Formalin is a generic term which describes a solution of 37% formaldehyde gas dissolved in water. Solutions of formalin for use on fish should contain 10 to 15% methanol, which inhibits formation of paraformaldehyde (discussed below), a highly toxic compound. Two commercial products have been approved for use in aquaculture by the Food and Drug Administration (FDA). These are Formalin-F sold by Natchez Animal Supply, Natchez, Miss. and Paracide-F, sold by Argent Chemical Laboratories, Redmond, Wash. Both of these products have been approved by FDA for use on food fish (trout, salmon, catfish, largemouth bass and bluegill) as a parasiticide. There is no legal withdrawal time (time after the chemical was used before fish can be slaughtered for food) for either of these products. 
Retrieve Full Article


Home - Contact Us

Copyright © 2003 BioFilter.Com. All rights reserved.
Aquaculture bio-filters and aquarium biofilters are biological filters. Fish farms and garden ponds use filters. Freshwater filters and saltwater filters use the same biological filters as biofiltration systems. Biofilters use bacteria to filter water. QuikSand filters are biological filters. Marine, reef, fresh, salt, tropical fish, bait, bass, catfish, coral, crawfish, koi, lobster, prawn, shrimp, trout and salmon all need water bio filters for biological filtration. BioFilter.Com is in Gainesville, Florida.