I think it is! It has the supplements that cannabis needs. You can use the sweet in veg as well. Sweet has no NPK rating.. It'll be fine to use the both during flower... As for the Bloom and hydroplex together... I use them both as per the label.. Never had a nute issue that would have made me flush them other than when They are almost done.. I just flush them as to not get the harsh chemical taste that the nutes can leave... Makes for some very tasty smoke after your cure in the jars...

Life in a Jar My Brother!