Archive for the ‘DEP’ Category


DEP is an organophosphate medicine used to control parasites of fish in designated aquatic environments. It is also used for treating and control of internal parasites.
Physical Information
Name: Ethanephosphonate Metrifonate

Chemical Structure

Formula: C 4 H 8 Cl 3 O 4 P
• In pond treatment for fish : 0.2- 0.5g per ton water for fish in pond, no water exchange is needed BUT close minitoring is necessary. If fishes seems to be irritated and weakened by the dosage, immediate water exchange is required.
• 2 hours bath for fish : 0.8g per ton water and close monitoring is critical.