I have a true SAE for trade. It's a year old, 4", and is still great at keeping my tank clean. Has been kept without any other SAE but I'm sure it would be fine with others so long as the tank is large enough.
Willing to trade for rummy nose, cardinal, or neon tetras, nerite snails, or crypts. I'm in Lynbrook but regularly travel along the south shore through western Suffolk.