I have wisteria in my tank and my 2 albino plecos just love hanging from it. They love the algae growth on the leaves and are surprisingly gentle leaving the leaves intact.(the albinos do grow quite large) My other plecos aren't that interested with it. My tank has neutral ph and temp is around 26.5 deg celsius and the wisteria thrives. I agree with Ziek and otocinclus cats are a good choice but they do seem to be very finicky. My clown loaches also seem to like it but not as much as the plecos.