Well this feeders supply has no filters except in their most valuble tanks which has angel fish in it and its only a sponge filter. And I have a non chain store in my city called petsgalore and they take very good care of their fish but they have a big problem with green algae because the front of the store has big glass windows and doors that lets in alot of light. But like all other pet stores they take horrible care of the bettas. They have dead bettas for sale, bettas swimming in green water sick bettas.