didnt give nutes,i adjusted my meter about 3 weeks ago can it be thats it got screwed couse on the bottle of the spring water that i started giving them 3 days ago it says 7.4 ph but when i tested it read 8.2 ph.so now i dont know if i can trust my meter or maybe they got it wrong,i have no more buffer solution, i order it from the net its suppose to be here friday