Danner Supreme Oxy-Flo Air Pump Diaphragm Replacement AP-4 & AP-8, Pack of 2 Laguna MAP It is recommended that the

It is recommended that the aquarist carefully observe treated fish for the first few hours after treatment and be prepared to perform an appropriate water change if needed

It then passes through the mechanical filtration stage

Certain individual fish and fish that have been severely traumatized by disease may not tolerate any treatment

A partial water change (25% or more) before each treatment will ensure more effective results

which are an essential part of a healthy

Danner Supreme Oxy-Flo Air Pump Diaphragm Replacement AP-4 & AP-8, Pack of 2 Laguna MAP It is recommended that theEach kit includes two rubber diaphragms. The AP 4 requires one replacement kit and the AP 8 requires two replacement kits if replacing the diaphragms on the AP 4 or AP 8 Supreme Aquarium Oxy Flow Air Pumps or Supreme Hydro Oxy Flo Air Pumps. Item # 14605 Danner Supreme BFA Item # AP 4 & AP 8 Air Pump Diaphragm kit of 2 DA14605