Go a 75gal tank, then you could do things A LOT easier! JD might work...you'll want to stay SA cichlids though, will work out better, so bump the JD and the Salvini (salvini are BEASTS..oy!!) and stay with the green terror. Are those really the only cichlids you have available to you? Cuz there are much more that would work just as nice if not better...severums, uaru, festivums, chocolates, true parrots (Hoplarchus psittacus) just to name a few...