Tom
I like the idea of low maintenance. I am more than happy to do away with water changes if averything is in homeostasis. Also if dosing wikth Kno3 will provide all the K i need oaa the merrier.

VaughnH
I never considered the CO2 in tap water during water changes and potential for algal growth. What puzzles me is the daily diurnal fluctuations in CO2 levels related to the normal cycle of photosynthesis. This doesn't appear to be a problem with algae. How much CO2 can 10% water change introduce into the system anyway? I suppose i could aerate the water to be on the safe side but i do not think it will be a problem.
LAKA