New to growing, general indoor questions

[Rusty Trichome]

1. I am starting seeds in a jiffy seed starting cube, how soon should I transplant into a larger container, and when I do, what size should I transplant to?

Are you rinsing the cubes with properly ph'd water before germinating? Once seedling is a week or two old, can transplant directly into a gallon pot.

2. Are heat lamps bad? or lights sold at home depot specifically called "Plant Lights" bad? I bought a plant light and it was blue and killed my 2 inch tall seedling in one night. any info?

Heat lamps and Mercury Vapor lights are bad. (heat, wrong spectrums)
'Plant lights' are generally a waste of money...I'd go with cfl bulbs or a small MH light for veg. HPS for flower.

3. I bought fox farms "Grow Big Liquid Plant Food for vegetative growth" when should I start feeding a new seedling with it? the package says to start within 2 weeks of sprouting or transplanting, suggestions?

Depends on the soil...If not using the Miracle Grow (or anything pre-ferted)...I'd follow Fox Farms directions.

4. Is "Miracle Grow Moisture Control" a good potting soil for marijuana?

From personal experience, when using it for transplanting seedlings, you can and will overdose them if you add nutes for the first month or so. But once you get used to it, it works fine. During the winter, for me, t'was better to use the regular Miracle Grow. (not the moisture control formula) Careful with overwatering, as it is designed to hold moisture longer than a "normal" potting mix. (allow soil to get almost dry between waterings)
Having said that...there soils that are easier to use.

Later, when transplanting from a 1 gallon to a three or five gallon (filled with MG)...wait about two or three weeks before adding nutes.

5. How close should I keep a 150 watt soft white CFL to the plant? it has 2600 lumens

Put your hand between the plant and bulb. If it's too hot for you...it's too hot for the plants.