i have a planted tank with neons n other fish and my schedule is um well lets say 1st of month i do a partial water change (33%) and rinse filters, then 2 weeks later i do partial water change and thourough gravel vac, then 2 weeks back to partail water n filters again. this schedule works great for that tank but it's been up for years and parameters are always good. can u put water params for ur tank up?