Well I used the recommended 1 gram of coloring and kind of on the dark side.probably would have been o.k. with .75 gram. Added 3 more ml's of surf this morning so it has 58 ml's total.it was striating=column. mass would go to the the top then break off and bubble for a short period then start all over. we'll see if it does it a little with the 3 more ml's of surf I put in.