A fresh water fish tank requires about 30 minutes to an hour of work a week depending on the size of the tank. Waht you will need: 1) You will need a clean 5 gallon bucket that has never had chemicals or soap inside of it. 2) A hose or gravel cleaner 3) A bag of natural or synthetic sea salt I have split the work into two parts the tank which needs to be cleaned ever week on the same ... https://return-card.com