fyi, L239's are notoriously hard to feed at first. they tend to be wild caught since breeding them hasnt been mass marketed yet (some aquarium in france has spawned them once so far, but this hasnt become a regular occurance). a few things you should know:
1) hes likely crawling with parasites. the one i got was INFESTED with body flukes. prazipro works very well for internal and external parasites. its very gentle and pleco safe. i recommend getting some and dosing both food and the water.
2) hes not used to prepared foods. he probably doesnt recognize it as food yet. be patient. what you can do in the meantime is to grind up your favorite fish foods into a powder (rolling pin and a plastic bag will work great), mix it with an egg white (do not include the yolk; you separate an egg by cracking the shell only, then dumping the inside of the egg out onto the palm of your hand; let the white slide out between your fingers into the bowl. throw away the yolk if you dont want to cook it and eat it). get some large rocks and paint the egg/food mixture onto the rock. let the egg dry HARD; takes several hours with a fan, overnight without one. once the egg white is dry, try adding the rock close to lights out (either just before, or just after). they feel a lot more secure with the lights out. the egg white is also a great source of extra protein that the pleco can use to help bulk up a bit. once youve noticed that hes been eating regularly, you can stop doing the egg/food mixture. just add the rock and drop food onto it. in a very short time, hell have come to recognize the rock as the food source and should eagerly begin to feed off of it, even when the eggs/food stuff isnt on there. pretty soon you can just add food and no rock. mine comes charging out after lights out. he even grabs wafers away from cories! mine also LOVES broccoli. so far he hasnt touched any other veggie.
3) these guys have just been categorized into the baryancistrus group. they need wood. not the way that panaques do, but they munch regularly on the biofilm that grows on the wood. if its large enough, it can also act as a cave and help your pleco feel secure.
4) dont expect to see these guys out and about with the lights on much. these guys are VERY shy and reclusive. but once settled, you should regularly see them come out to feed.
you can find more info on planetcatfish.com
hope this helps.
inkyjenn (from ac)