1. Are they the same?
assuming u mean common pleco like redspot and BN then no. but BN is a type of pleco
2. How big do they grow?
common 30cm+ BN 12cm MAX
3. What are some nice but reasonably priced ones?
retail price = common from $10 at 10cm BN at $2 from 3cm
4. Can a M/F pair live together happily?
yes and can be breed in captivity
5. What do they need? I know they need some driftwood, and probably a cave of some sort. But anything else?
clean water and be feed not just living off algae and left overs
6. What should I feed them? Cucumber everyday?
u can buy sinking food especially for plecos. they also eat bloodworm, shrimp pellets.......etc
7. If anyone wants to sell me some, please post a picture or something.
i only have GBA/golden BN for sale. [one on the left]