Should i add a pleco?

started a 75 gallon aquarium a week ago. This was a previously set up aquarium and i re-used the old gravel(lightly cleaned) and the driftwood(lightly cleaned) in hopes to speed up the cycling process. I already have 6 zebra danios in the tank as advized by the LFS. The driftwood has algea growth on it, and i just put a few live plants and added 40 watts of light(now have 80 Watts) with the increase in light, i would only expect an increase in algea growth. should i add a pleco to help with that, spot clean(or will that mess up the good bacteria that is growing), of just let if grow until the cycle is complete and clean it then?