Started mixing in NLS Algaemax into the feed for the 300 and the giant gourami loved the stuff. A bit of a frustration with the "Large" pellet said to be 3mm being so small that the fish has difficulties getting the pellets without getting a bunch of sand in his mouth too. Wish NLS made this in a 4.5/5mm pellet, but next one up is the Jumbo/Mini-wafer (7mm?) size which my fish is just a bit too small to eat, but I bought some anyway for future use. I will end up using this "large" sized for the goldies so not a waste. A floating version of the Algaemax would also be nice, this really is a high quality veggie food.