hey guys just wondering when to start adding ferts and or fish to my 70gallon planted tank. My tank has been up and running with plants for three days. most the plants are stem plants but also have some java fern and a couple of swords. The stem plants are growing but just a bit concerned about the swords some of the new leaves are looking a bit yellow. the tank has a mixture of fluorite and pool filter sand for substrate. lights are bout 2watt per gallon and co2 levels are around 15ppm. I am just a bit confused about when to start dosing trace and macro any help would be great.