Tetra. I have five different foods from them, 1 tube of crisps (my main food), 1 regular flakes and 1 veggie flakes, and then the other two are catfish food .
My fish really like the Ocean Nutrition products. They also like the TetraMin crisps, and I like the crisps since they sink quickly to the bottom if I release them under the water. Then my loaches get to enjoy them.
I use Kensfish flakes, pellets, sinking bits, and sticks for all of my fish and inverts. I also use Hikari Betta BioGold for my VT Betta - because he won't eat anything else. That is besides snail jello & veggies.