Originally Posted by chokingvictim
I had a friend, also a grower, tell me that he doesn't even check his nutes. he can tell by the color of the water. I suppose it's just experience, but I don't have $200 now for a ph tester. is there any other way I could check nutes in a reservoir?
o know a brand who has good ph meters for € 35
brand is fastech.. but i dont know if you can buy them in the us..
i use them.. and they are oke..
If you re-use your soil a few times... you urn that money for a meeter back very quick..