thanks for the help all

really appreciate it!
I'm going to look for more cheaper testers in the stores!
Oh, and jsalemi: That sounds good..............I see some VERY cheaper test kits at the online stores, but I'm afraid the shipping price is very high because we live here at the Philippines..............but your idea..................does it mean that, I will print the price from the internet, then go to a local fish shop, then if they have the same brand of test kit that I printed from the internet and show it to them, they will lower the price? Am I correct? If not, please give me more info about it. Thanks!