how is sacraficing the substrate going to improve water quality?
a live sand bed or even a dsb, will HELP with water quality, not hinder it. Adding both, comfort, shelter and improved water quality, if anything.
Sorry, i know nothing about the tank size and such, but just do not understand the above statement. unless that is what someone with marginal experience is leading you to believe. I just don't get the concept is all.
BTW, they are nice pics with interesting fish, IMO