I noticed the fx4 on my 75 wasn't pushing much water so I decided to clean it? I filled up a 20 gallon tote with 10 gallons of tank water and to get a bit more I added 5 gallons of tap water, well I added what I thought was declorinator to the 5 gallon bucket before I added it to the tote but it was acually Flourish excell... I didn't notice until I cleaned all my media in the water. Suggestions??? Please???