Clown Plecos,
, are one of the most reclusive species of plecos I have ever kept. I don't know if any of the usual "tricks" can change their behavior.
The suggestions to keep plecos in larger number and providing them with plenty of cover are the best ways to be able to see at least some of them some of the time.
I haven't kept L201 but I have 7
which are another black pleco with off white polka dots, have proven to be as shy as H. zebra which are generally pretty shy.
I consider
to be among the most outgoing small plecos. They often dominate in a mixed species tank of other smaller pleco species. Even this species still hides most of the time.
Sometimes if you keep plecos in species tanks you will get to see them more often or at the other extreme, keeping groups of many species in one tank often makes them all more outgoing. Having other plecos adds an element of competition which can make them less shy especially at feeding time.
In the end, all the plecos are reclusive fishes by nature and it is something we have to come to terms with because fish do not easily change their normal behaviors to those that we may wish to see. The all plecos, mixed species and sizes type of tank is the way I have seen the least amount of hiding and most activity.
Avid Trout fly fisherman. ·´¯`·...¸><)))º>