It is a great achievement to breed it for eight years, Jim.
The longest term that I can breed Sinogastromyzon puliensis is only for one year for the moment.
Though it is the environment where S.wui lives more than three years, I think that probably the environment of the water tank does not match S.puliensis.
As Jim says even my experience, S.wui does not do algae grazing very much.
But I saw it rarely doing algae grazing recently.
I think S.wui to be conservative.
They rarely leave the glass surface of the water tank.
Therefore there are very few pictures which their back appeared in.
They may have stuck to a considerably big rock in the natural habitat.
S.puliensis grazes algae than S.wui and is more active.
It is the contents which did the post in LOL before.
http://forums.loaches.com/viewtopic.php ... astromyzon
Another Hillstreamloach got mixed in with S.puliensis which arrived at Japan from Taiwan recently.
Probably I think that it is Hemimyzon.
Because I was able to get two of them, Thus I intend to introduce it soon.
I suggest to you to look for whether the long body one is not mixed.
Sinogastromyzon puliensis. Eating bloodwarm.
Sinogastromyzon wui. Following two Sinogastromyzon wui come in July, 2006 and are still cheerful.

I am not used to English. Therefore,It is likely to sometimes misunderstand it.