stoner like i said earlier in the thread,personally i dont think we need the bio-grow as the all-mix soil has plenty nutes to last around the first 4-5 weeks so my second grow i aint fed them any bio-grow (for veg) and just started giving them half the recommended dose of bio-bloom 1 week into flowering and only doing so every 3 or 4 waterings,my advice is take it easy with the fert as i learned the hard way and over done it with ferts and had to flush all my plants which is a feckin nightmare when your having to shift all your plants from the grow space to the bathroom and your plants wont be happy with you doin so!
try not ferting at all when you are vegging your plants,if only veggin for 4-5 weeks you should be ok but if you start to see a loss of green colour in your plants give them a watering with 1/4-1/2 strength bio-grow and see how they respond.good bit of advice is not to panic when you see something looking not quite right as this is when you might try loads of things to help them get better but only ends up makin em worse,take it easy with the grow and dont PANIC