There is a good discussion here, having no personal experience I can't tell you what the effect on shrimp would be, but from reading the info in the above link, obviously I would choose not to use it in a shrimp tank. Some of the more accomplished water gardeners around here swear by hydrogen peroxide as a string algae treatment, I have one pond I'm going to try it in this weekend being at my wits end, but it only has plants and minimal fish. ----- Original Message ----- From: <Imw88@aol.com> To: <aga-member@thekrib.com> Sent: Thursday, July 14, 2005 10:28 PM Subject: [AGA-Member] Re: AGA-Member Digest, Vol 13, Issue 11 > Is the Peroxide treatment safe for Shrimp? > _______________________________________________ > AGA-Member mailing list > AGA-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/aga-member > _______________________________________________ AGA-Member mailing list AGA-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/aga-member