I like to give an equal amount of nutrient, this is based on advice from BIo Bizz themselves... they say the trifecta of grow/bloom/topmax is a 6-10-10 NPK ratio, and it provides everything the plant requires.
Alga Mic is seaweed extract and contains micro nutrients like copper, zinc, molybdenum, manganese, iron...
my soil is homemade, a blend of Irish peat moss and worm compost with blood, fish and bone meal, dried seaweed, chicken manure and epsom salt. Perlite is less than 5%
The week of plain water last week had no real impact, they are still very dark green, I like to lose a bit of nitrogen in flower, I may use half a dose of bio grow next feed.