i'll tell ya a seceret, the brand is "aquasafe" Its a decloranator for ponds, it come in a big maybe 12 ounce bottle way cheaper than auarium dechlorinator for its quanity, u can find it most anywere from wal-mart to petsmart, i got a bottle from wal-mart in the pond section, its a steal, my fish are thriving by the way, just thought id fill ya in