newbie nutrient questions
1) So Im going to be using General Hydroponics Flora series. Ive read about PPM/TDS, etc and bought a meter with good reviews. But I'm looking for a general guideline to start with. I saw someone else mention they use 1 tsp of nutrient solution per gallon of water. Is that a good starting place? I can put that much in, and then test to see if the TDS/PPM is about where it should be and go from there?
2) Also, I see a lot of people asking things like, "what should PPM be for tomatoes?" but I have a hard time believing that answer is the same across nutrient solutions... or is it? The instructions I have from GH are very very generic. How do I know what my target PPM/TDS is for a given plant?