They need the small sealed CO2 cartridges, not the screw on tanks. but yes they need Co2 to function.
No, they must be filled (and not with air). The only exception is the silver 12 gram cartridges for pistols and stock class guns.
Compressed air tanks were around long before paintball.
T-Square Paintball, Jacksonville Arkansas
Cheap co2 tanks are about $20. Carbon air tanks go all the way up to $125 or so
Cubic Inches or the Volume. The Bigger the CI the more air its holds.
Usually specialized paintball "pro shops" that sell paintball markers, paint[balls] in quantities of 2000 or so, paintball gear (apparel, safety googles air tanks), and may offer refills for air tanks. Usually there will be one within a paintball field or pretty close to one, and some may may be miles away from the nearest field.
There are many items that are sold on the Bandlands Paintball website. To name a few they offer paintball guns, masks, clothing, barrels, pads, air tanks, protective gear and DVDs with instructions.
The sizes 9 oz and all the way up to 20 oz can be used for paintball gun. Some of the paintball guns are supposed to be used by the larger tanks. So the size of tank depends on your paintball gun.
No. the only full air canisters are 12 gram CO2 cartridges, all others are sold empty under law.
On a paintball gun C02, or High pressure air is necessary. It is compressed air that, when the trigger is pulled and the marker fires, propels the paintball out of the barrel.
Yes, if you declare it as a firearm. You cannot bring air tanks however.
I'm going to include paintball rifles in this answer. The cost of paintball rifles can exceed $500, but your question only refers to C02 powerplants. So in this answer paintball generally out cost regular C02 pistols and rifles. Now if you include all power plants like Pump, spring and PCP. (Precharged Pneumatic) air weapons then Pellet pistols out cost Paintball. As for the sport itself, with the cost of protection gear and the cost of gaming in general, then Paintball out cost regular C02 in general. But remember paintball is a competitive sport where teams compete against each other and shoot each other. Pellet shooting is a target and hunting sport, they are two very different sports and really should not be compared. Getting shot with a paintball won't kill you, getting shot with a pellet can kill you.