In your tank you also have an L018 Gold Nugget Pleco which will reach around 35cm. And as it grows so big, you will be stunting its growth by keeping him in there. Why not move him t your other tank? Adding dither fish will simply overstock your currently overstocked tank even more. I realise the EBJD will be moved but unless it (and advisably your Gold Nugget Pleco)is moved I would not add anymore fish.