yes these bottles are getin filter water and everything they are about 1 gallon and one is like the size of a coke bottle those big ones
If you read up on how guppies are most succesfully kept and bred, I think you'll find 1 gallon bottles don't come into it. Sorry to be so blunt - but you need a bigger aquarium!
Those poor fish will not do well in a bottle, as the surface area is diddly squat. How on earth are you filtering the water? The more surface area you provide them with, the more room they will usually have, and oxygenating the water is simpler too.
Where did you get these guppies from? How do you plan to care for them in the future when you have hundreds?
guppies breed better than rats, rabbits, snails, anything... and once you start, it's difficult to stop, as the adult guppies get used to smaller fish around them, they stop eating their fry. This could cause serious problems for your ammonia and nitrite rates, as too many fish and not enough room becomes the issue.
Unless you are willing to buy yourself [your guppies really] a larger tank, I would personally suggest not keeping them.
In a standard coke bottle, your guppies would surprise me if they lasted longer than a year, it's just not fair on the fish.
Sorry to be sturn, but I am a fond breeder of guppies and hate to see them mistreated.
Try
this site out for some good information!