I have never used these products so i cannot say which is better. I never use a heat-pad and dont have any problems with night temps. Superthrive never used it . I only use Mycorrhizae on the seedlings and it's included in my potting seedling mix.After that Plants are strong and have no problems in the next size container with only promix and dont need Mycorrhizae to establish the roots in that container. The only thing I make sure when buying soil is to have a high % of sphagnum peat moss in it. And the seendling mix as a little organic matter in it but mostly peat moss.
canadianhemperor Reviewed by canadianhemperor on . Dead roots? I'm new at this and have a problem and questions. Four days after successful germination, the plant did not rise and the casing seemed to need to be removed. I did so and the whole seedling was loose. After very slowly pulling up, I found that the root barely developed and got these: (auto blueberry feminized) (auto white widow feminized) They were planted in organic soil with no nutrients. Also in the water I had a very tiny bit of super thrive. (about a drop to 2 gallons) Rating: 5