Yes. Most pellets, flakes and even frozen and freeze dried food products for fish are swappable. However, just because they can be does not mean your fish will take to this unknown food.
pellets, fish, water plants, veggies.
Shrimp pellets
Carnivorous water bugs feed off small invertebrates and fish by sucking out their fluids. Omnivorous water bugs feed off freshwater plants.
Redfish are fresh water
Freshwater fish tend to gain water.
The crab will eat bits of uneaten food (pellets/flakes etc on the bottom of the tank. It will also clean up any dead fish etc that it finds.
Well, it depends. If it is a tropical fish it needs tropical flakes. If it is a betta fish it needs betta pellets. If it is a algae eater they need algae chips. If it is a fresh water fish it needs fresh water flakes or pellets or goldfish flakes or pellets. They all like freeze dried blood worms as a special treat! It is good to feed a variety of fish foods! Good luck!
The guppy is a fresh water fish.
The pellets yes, the tropical fish flakes, no. Feed it every two or three days.
There are vitamin products made specifically for fish. I use Vita-Chem freshwater version for my freshwater fish. It is used to soak the fish food in before feeding them to the fish.
freshwater.
They eat vegatation in the water and some fish eat other fish. Many Freshwater fish also eat insects and freshwater crustaceans.