Fish Penicillin 500mg (Fish Pen) Fix Pen Antibacterial Strength & Count:500-mg (30 Count) use the following administration regimen

use the following administration regimen based on weight:

Keep dosing on schedule and keep aeration strong

either before or after meals

providing economical solutions for varied infestations

Glucosamine HCI

Fish Penicillin 500mg (Fish Pen) Fix Pen Antibacterial Strength & Count:500-mg (30 Count) use the following administration regimenFish Penicillin 500mg: Penicillin for Fish and Pet Birds with Fin Rot, Pop Eye and Skin Ulcers Fish Pen (Fix Pen) is a fish penicillin 500mg tablets for ornamental aquarium fish and non food pet birds. Each tablet contains 500 mg of Penicillin V Potassium, made by Aqua Soma Labs in the United States, and aquarists use it for fin and tail rot, infected wounds, pop eye and columnaris type lesions where a bacterial cause is suspected, in both freshwater