What Will Make a Goldfish Grow Faster? Depending on his type and his environment, goldfish have the capacity to grow anywhere from around 6 to 15 inches within a very short period of time. If they are kept in tiny aquariums or little bowls, they will still grow, but much more slowly.
What Will Make a Goldfish Grow Faster? Depending on his type and his environment, goldfish have the capacity to grow anywhere from around 6 to 15 inches within a very short period of time. If they are kept in tiny aquariums or little bowls, they will still grow, but much more slowly.