Plecostomus punctatus is now
, although if they are for sale in a LFS, they are frequently mislabeled other common plecos, particularly
.
Either way, aside from needing a good dose of vegetable food almost all the time, they are pretty difficult to go wrong with. In fact, you can probably find a local river or some such that have some form or another of "Common pleco" in it, an do nature a favour by taking it out [check for legalities, it may still be illegal to remove "exotic" creatures from nature where you live - don't want you to blame me when you end up in jail!].
Of course, the water conditions for feather-fin
and Rift lake cichlids are somewhat different - the latter have a pH of upper eight, and the Syno being "max 7.5". [Likewise for plecos, they prefer lower pH].
You can, however, get the fish acclimatized to an average pH of around 8 without too much trouble...
--
Mats