Hello guys. First of all I apologize for my bad English, as I am not a native speaker. I started in the aquarium world only 3 years ago with a 35 gallon aquarium (160 litters). I try to unite a lot of fish in my aquarium (because of my daughters who love fish like mollies and platys) and many plants (because of me). This has been very difficult as algae comes with this combination. But I'm trying.