a few indoor grow questions

main questions
1. are my lights sufficient for 2-3 plants. i have a F17T8 zoo-med two foot super daylight 610nm that i use all the time from about 1-2 inches above... and i also have a full spectrum F17T18 zoo-med tropic sun 5500k DAYLIGHT 610nm that i have been using once every 4-5 days?

2. should i switch my lights to 24/7a week(from16/8 a day) on plants germinated on 3/18

3. i know to wait till week 3 before fertilizing, but what retail store can i get a fert similar to eco-gro?

this is my first indoor grow so any other tips and tricks for a FAST high yeild would be great!

please do not post false statements or try to give info you are not possitive about... if you dont know exactly what your talkin about leave the question answering to the pro's
THANKS

Welcome to RIU

You should be using both of those lights. I use a 21/3 veg schedule for my lights, but everyone likes their own method. Also, it's not the rule of thumb to wait until week three to start feeding nutes. That all depends on if there are already nutes in the soil.

For a little bigger yield, I like to top:

https://www.rollitup.org/advanced-marijuana-cultivation/151706-uncle-bens-topping-technique-get.html