AQUANEATAquarium X Large Bio Sponge Filter Breeding Fry Fish Tank (XX Large up to 220Gal)

Does this come with a suction cup on the bottom for a bare bottom tank?

It said it can go up to 220 gallon tank. Would 2 of these work for a 330G tank and aslo would it be ideal just to use these only as filtration?

Which air pump would you recommend for this sponge filter ?

What size tubing do u connect?