Right now, I have some chollawood. Is that okay, or do I need another kind?
I've never known a pleco to be overly particular about driftwood, but in the past, mine have really chowed down on malaysian driftwood. IME, the malaysian driftwood held up to their gnawing, hid algae from sight, but held on to it well enough to provide a snack.
Cholla wood isn't actually wood, it's from a cactus & rots down quite quickly in relation to other woods. I don't keep plecs so don't know how suitable it is for them, maybe be best to go with a Malaysian or Sumatran wood, not Mopani as it's too hard.
I find a lot of nice driftwood and Mopani in the box stores in the reptile section. Remember- boil it!!
I have cholla with my baby BNs and they like it just fine. Also have one piece in the 45g with the big BNs and they chew on it too. Also have Malaysian driftwood in the 45g and Mopani in a tank that's cycling (supposed to be too hard for BNs but we'll see).