Crypts don't like to be fully buried. The key too with them is that they don't like to be moved. If they are, they go through a meltphase of shock, but then if left alone they come back.
As for your pleco, I am sorry for your loss. In your size tank, I find otos and amano shrimp much better algae cleaners and they don't require so much space. They are hard workers!
As for your pleco, I am sorry for your loss. In your size tank, I find otos and amano shrimp much better algae cleaners and they don't require so much space. They are hard workers!