What are the other fish you have in your tank? What are the water conditions, pH, hardness, etc? Do you want just one pleco, or would you be interested in several smaller ones?
Yes, what are saps?
Green phantoms would work in your water parameters for pH. What's the temp of the tank? There are two types of "green phantoms." I'm assuming that you keep the tank "coolish" for the sae, low seventies. The hemis would be ok with that; the barys prefer warmer water, according to planetcatfish.