Join Date: Sep 2011
Location: New York (Long Island)
Discus prefer warm, acidic water (pH 5-6, temps in the mid 80s) and this will limit what types of plants you can have to some degree.
I'm new to planted tanks, but some of the aquascape tips I've garnered here are:
-figure out what type of 'scape you want - biotype, nature scene, realistic underwater view, is the focus the fish or the plants, etc.
-smaller leaved plants towards the back help with perceived depth
-slope the substrate higher in the back, this also gives a greater impression of depth
-don't plant a million different species of plants, it looks better when you have groupings of same/similar plants.
-leave 1/4 to a 1/3 of the scape open/unplanted (except for a "carpet" which is usually low to the substrate anyway)
-follow the rule of thirds, similar to photography, to create focal points without being overwhelming.
Best bet is to look at pictures of planted tanks with discus to help you get some ideas as to what you would like to do. Hope this helps and good luck.