Fertilizer question? Blood meal

I have three plants that are under 4 CFLs (not sure what wattage) and I am on day 13 of my grow. They are about 4-5 inches tall and I am going to transplant them into 3 gallon pots with miracle grow all purpose planting soil with time released nutes (up to 3 months). I just bought Vigoro brand blood meal (12-0-0) and I heard this is a good organic fertilizer. My questions are when should I start using it, how much should I use, and how often?? any help would be greatly appreciated.

Thanks

I would think that you would need a more rounded fertilizer. Blood meal has no potassium or phosphorus.

The soil should have enough organic material in it already. I would wait to add fertilizer to it until it starts to show signs of nutrient deficiency. Adding fertilizer on top of fertilizer will burn your plant.

No one else??

I wouldn't use anyhting with time released nutes, you wont be able to feed your plants what they need without burning them. If you did overfert flushing them would cause the time release nutes to release a lot and burn your plants even more.

It's already been said here and in your other thread - not a good idea with your choice of miracle gro soil.

Just as a helpful FYI - keep the question to one forum topic section - spamming the same question all over the site isn't looked upon with favor.