i only paid £3 for 60L (12gal) and it says upto 6 weeks and as im currently on day 53(7 and a half weeks) so have been using the bloom and grow. but have a def (its posted in infirmary) and been told it might be my ph and this is why i got this digital ph pen to tell if it is or not.To be honest the bio bizz soil's are probbs the same price as the ones from a garden centre so if your on a tight budget then use what you have got does it say feeds plants for upto 3-4 weeks? If so it will be quite hot so i wouldnt add any nutes for 2-3 weeks![]()