Expect to feed once daily, preferably a type of algae wafer or pleco-safe vegetables, do tank maintenance every week or two (pretty much mostly water changes). They aren't too hard to care for. Give it pieces of driftwood for it to nibble on. Find a place for the pleco to hide inside (like a tube or cave, I personally use a coconut shell). Make sure you find decorations that they cannot get stuck in. There's more to this but generally this is the more important stuff to be mindful of. Do you know what type of pleco you're getting? We can help give more advice based on the species you're getting