You can get a cheap soil tester from HD, Lowes or any home improvement store. You can also order one online as well. They cost less then 10 bucks USD in most cases, with that you also get a moisture meter so you know when to water or not.

Something to think about.
Zandor Reviewed by Zandor on . fingers on leaves rolling up at the edges/HELP!!!! hi to all, can any one help? i have two plants,one pink indica and one train reck. they both are 18in,they are in 5gallon buckits, in door, the lites are 4ft florecent. in the last week the fingers on the leaves started rolling upward like straws. this started at the top of the plants and is spreding downward,its even spreding to the new branches. im getting scaired ! can some one please help? than you very much. PS,i dont have pics at this time,sorry. Rating: 5