ants in boa cage

[Lrptls]

at my house we always have a problem with ants, we constantly spray and have ant traps every where but there are always atleast a few around the house at all times. latley has been terrible, i can't have any sort of food or drink out or within minutes it will be coverd by hundreds of ants. they are all over my floor. i even pick them off of myself. luckily they havn't been geting into my mammal cages to eat their food. but there is one cage they are going into and i dont know why. i have a boaphile cage on the floor with a large bci in it. there is nothing in that cage the ants would be going after. the cage is really dark due to no light inside so the only place i can see the ants is on her water bowl. i think they are only entering the cage to drink. but i dont want them bothering her and i'm scared to leave a rat in there for too long (she likes to eat dead rats that have been siting in her cage over night) how can i safely get rid of the ants in her cage?