we gonna stick to the 1 week for now but I guess the main reason for asking was to try to get the plant to use up more of it's own resources. No I dont have Clearex yet but plan on getting that also (It's on the shopping list and it will be the GH version). Just seems like at the end of 1 week of plain water there is still an awful lot of green left and I drain and fill Sunday, Wedensday n Friday so it's not like they got fresh plain water :wtf: