Been using Roots Organics HPK.Has PK like 4-5 which isnt 13-14 and its not hommade but it is organic hella affordable and is an awesum product IMHO.That and sum seabird guano n mollasses is all the bloom boost youll ever need.
Seabird guano is high in nitrogen. I wouldn't use it past the 5th or 6th week of 12/12, but it really does depend on how long your plants go. Just be careful or you'll get some serious foxtailing.
