I do use a TDS meter.

Latewood's recipe leaves my TDS around 1400ppm. My tap water starts off at around 180ppm. Might seem like a light feeding but his guide is just that...a guide line.

I'm going to be adding a bloom booster this next round. Dunno which yet, but i want to see if i can push these ladies a little.

I suppose i can see how the FloraNova is so attractive...this flora series is a lot of mixing, 3 parts plus booster...YOW $$$ !!!

let us know what you decide.

Skeet.

PS: I dunno if you care...I see SAP420 mentioned it...so...i keep my pH around 5.8-6.0