How To Care For Goldfish Without A Filter. You can feed your fish with ready-made commercial goldfish feeds. The bowl with no filter arrangement will likely shorten the goldfishs life.
Do goldfish NEED a filter Answer. Several different varieties of goldfish can live in small fish tanks without filters. They do have a minimum requirement of 5-10 gallons and require plants to be happy but they can survive without filtration.
Coat the bottom with either very large gravel that cannot get stuck in your fishs.
Your Life Without a Filter for Your Goldfish. You keep the goldfish inside during the winter and then place them in the garden ponds during the warm months. They will eat almost everything they find in their environment. Goldfish are omnivorous fish species.