Nutrients Velokelp for auto seedlings??

[Newtoautogrow]

I'm staring a new grow soon with autos in 22lr air pots and I want to maximise the size of the plant...my question is how soon can I give them velokelp to help root development.. Can I give velokelp on the first watering?... If so How much? Help is much appreciated

 

[nizmoKush]

I give them some after like a week or two in my soil since It has some nutes in it(coco loco) then I give them the remo micro, grow, velokelp, magnifical at about 1.5 or 2 ml per gallon on the first feed..
This round im not using using any bottle nutrients tho.

 

[BII]

I make sure kelp/algae is added to the 1/4-strength feed solution I pre-charge my medium (coco/perlite).

Regarding how much, follow the instructions, and otherwise you generally can't go wrong adding <2 mL/L with most every such supplement sold (and particularly with a rather harmless, including not containing much salts/ions, kelp/algae extracts).