Im working on getting that tank stocked, right now a pair of sparkling gouramis, 4 mystery snails and a couple of really old cories.
I have had the goldfish in those planted tanks for about 3 mons, they were established plants as those tanks have been up awhile. They dont eat the plants but because they are constantly picking at the substrate the plants need to have a strong root system. I am planting the other 20 long, getting it ready for fish and may try some new plants in with the goldfish...trial and error!!!