How can i make sure i'm properly cycling a small (2.5 gal) tank without spending big bucks? Are there cheap reusable water test kits? Are there special dangers in cycling a little tank like that? Thanks!
you are unlikely to get a cycle going in a 2.5 gallon, its better to do frequent water changes, keep testing the water and change when the ammonia level rises, lots of people keep 2.5 gallons in different manners.