Error, I just bought a gram scale that should come next week. I got it from a "store" on ebay that deals specifically in scales. There are a lot of pocket digital gram scales out there. Many will do up to 500g, are acurate to .10g and mine was less than $30 with shipping. You can get cheaper ones that weigh less in the $20 range. Sorry that sounds like and infomercial, I have never used one before.
YOu could use the 3:1:2 ratio with any measurments. If you want to use teaspoons then use Chuck Gadd's calculator and figure out the pm per ml added to your tank. You would have to figure out each nutrient individually but that would work fine. |