just stick with one gourami... the ten is okay enough for the dwarf but with two in that size you can expect some aggression... the clown pleco or any pleco gets too large and poops too much for a ten,... look into to albino or panda cories or otos... but even with 3 tetras, 2 platies, and a gourami.. you tank is stocked enough.... sorry.. if you want more get a bigger tank..