Yes they are omnivores and should be OK with most "All purpose" type Tropical Fish Flakes like Tetramin.
Flakes
Flakes
yes, most fish that eat fish flakes eat any type i have over 10 types of fish in a tank and they all eat tetra flakes
Yes, all the flaked food is the same except goldfish flakes.
Yes it can
Assuming that you are referring to neon tetras, there are several brands of commercial "Tetra Flakes" that can be bought at nearly every pet store. I believe that there is also a pellet version of "Tetra Flakes".
There are a variety of foods that are good for tetra fish and it is best to mix them up a bit. They should be fed prepared pellets, flakes and wafers. The flakes should be mostly meaty with some vegetable matter. One should also avoid flakes that contain fillers such as wheat. Flakes containing Spirulina algae a few times a week is also suggested.
koi fish would normally eat goldfish food try tetra fin goldfish flakes they are made for goldfish and koi
Red Tailed sharks are bottom feeders since there mouths faced down. So they eat algae and fish waste but they also will eat flakes, wafers, and crisps. That is the nice thing about red tailed sharks; they practically eat anything.
They can live together but you will have to be carefull with the temperature setting of your heater/thermostat and try to keep the tank fairly steady at around 75F to suit both species of fish. Tetra Tropical Flakes are a good all round fish food. Bettas are insectivores and need more protein than guppies so it is a good idea to feed the fish a few Betta pellets and live brine shrimp occasionally.
yes they can eat flakes
No. It is against the law. Will CAN'T eat the cereal Frosted Flakes.