Gonna do this over the w/e - just want some confirmation from more knowledgable fish-keepers that this is a good substrate for 'real' planting a 'tropical' tank: box of (heavily washed) Laterite granules gently mixed with an inch of fine natural gravel as the base layer; then another inch of just the fine gravel over the top; then an inch of sand over that (sand primarily for bottom feeders and to stop too much 'Laterite leakage'). What do you guys think?