I would recommend taking the filter off-line during the four hour treatments, as I was not able to investigate effects of the compound on filter bacteria. I repeat that it would be best to experiment with a small isolation tank before treating one's whole pond, especially if unsure about the chemistry of the local water supply. This is worth checking, as municipalities do vary their water sources without notifying consumers, and alternate sources may well have drastically different characteristics than the normally supplied water. It is advised that Chloramine-T not be used with formalin or benzalkonium chloride, and that users avoid skin or eye contact with the product. The powder and strong stock solutions should also not be allowed to come into contact with metal.
Many suppliers consider it an under-utilized compound in the home pond arsenal.
On behalf of the Fish Health Service at U. C. Davis, I would like to gratefully acknowledge the financial support of the AKCA, which partially funded this study, as well as the generous donation of the BGDX product by Argent. I would also like to acknowledge the assistance of Chris Wilson, DVM, and Ms. Jenee Mukai in the completion of these experiments. Booth, N. H. and McDonald, L. E. 1988. Iowa State Press, Ames Iowa, pp. The Veterinary Formulary.