Switched to 12 12, today, but wondering when its gonna double in size, since i will be away for a couple days, gotta make sure they dont go in to the lights. Does it grow like crazy 2 days after 12 12 change or does the spurt start later.
lol no. Takes time. About 30 days from now you should see considerable growth. Your best bet is to get a measuring tape and measure everyday.