First thing , forget Miracle Gro *anything* , all of it. Next time you start seeds you want to start 'em in a tray under a humidity dome , if you have to use soil to start them then get yourself a bag of Light Warrior for that purpose , the rapid rooter type plugs should work well for you too. Rock wool cubes are good **if you PH them correctly** , and forget the soil ph meter for now , go get an inexpensive Milwaukee pen meter , make sure you get a bottle of 7.0 reference solution with it , ***check that calibration prior to every use*** , setpoints will vary with temp and other factors.

If there is the right kind of store around get yourself some decent soil and a small bag of perlite , depsite what some folks say the Happy Frog , Ocean Forest and Amazon Bloom are all fairly reliable and widely available , the various Pro-Mix and Sunshine offerings are very good but you may have some trouble finding them in anything but the larger bales. For Perlite get the large and chunky if it's available , you'll arrive at the mix that works best for you after a couple of go-rounds , perhaps start with 1 part Perlite to 5 soil.

If you don't have a hygrometer get one , you need to keep an eye on humidity , and you need a fan for air circulation.


And I meant no offense on the MiracleGro , but there's a *lot* better available for not much more money , a LOT better , you could do better with just straight MaxiGrow/Bloom , some epsom salts ( magnesium supplementation along with extra sulfur) and some molasses.