So i've feeding my fish a mix of Ocean Nutrition, Spirulina Flake, and a freeze dried medly in the afernoon. Frozen/live feeding in the morning. I ordered bags of Tropical flake, earthworm flake, beefheart flake, and spirulina flake from Floridaguppies.com as it is alot cheaper and sounded more efficient for all my fish. I ran out of the old medly and got a cup from each of the new bags of food and mixed it up all together and started feeding it my fish yesterday thinking they would gobble it up and most of my fish dont even think twice about eating any of it only my fry and a few fish in certain tanks did. This is the first time I try switching foods should I give it a few days or buy the old stuff and mix it all together so they can get used to the new food?