Liquid fertz you can make tea yourself. I highly highly suggest seaweed during the whole stage of growth. You can get kelp meal from a big pet store. They feed it to champion dogs for some reason. Anyways you just stick an ounce in a ladie's stocking, stick it in a micro-safe pitcher, pour hot water on top of it until it's full, then let it sit for about 16 hours, then it's done! You can make tea out of just about anything that is soft and fluffy or dry and big flakes. You can probably use the blood meal for tea which I highly suggest instead of putting it in the soiless. Bone meal might work too. GUANO IS THE BOMB! It's harsh stuff used in excess but if you get it right the plants love it. Earthworm castings is excellent too. I am not too fond of Miracle Grow - honestly if you are picking up stuff at a hardware store it is much more economical and wiser to mix yourself. They should have molasses too which is good for micro nutrients and if you are lucky they might have humate which is a wicked catalyst you can make tea out of too. Humic acid is excellent. Humate in general is great to add to soiless but you got to be careful with it because it is acidic. If you do mix your own soiless - it is absolutely neccessary to test the PH.