[Diddy Gardener]

OK, this is silly but occured to me last night when feeding my plants. If you have a gallon of water and you've put in the appropriate amount of feed... how much do you give each plant? Told you it was silly... 

[arugula]

Not silly.

Just the sort of normal amount you'd give them to drink. If you use up your made-up mixture then you can make more.

[Diddy Gardener]

Thanks Argyllie... think I wondered as they'd already had a drink (from the bottom) and I was feeding from the top.

[arugula]

There probably is a more scientific answer but that approach works here, when its warm enough to grow tomatoes.