nutrient question

hey been brewing up some plants lately, they have now began flowering and are about 30 days into this process. I've been using the same fertillizer that i mix into water and add to the plants. Is this a problem, i've been told alot of people change their fertilizer, but i have seen no need to do so as this mixture has a ratio of 15N-12.5phs-13p and this level of phosphorus and potassium is pritty good in comparison to what else is available to me

You could, but you would have a really leafy plant buds and all. You really should change to a bloom nute at the least. Check out the nutriunt threads to see about all the different kinds everyone are using and listening to their results.