It sound like it will be ok. You stressed the kaka out of it and it may take a few days to recover.
test kits: ammonia, nitrite, nitrate, calcium, ph, alk to start with. Keep track of your test results. This will be helpful incase anything happens down the road.
water changes: this varies - 5% each week, or 10% every other week, use RO water for topping off in between changes. I do 5% weekly and test my water weekly.