How many flakes should a goldfish have a day?

Answer 1

Goldfish should be fed as much as they can eat in approximately 2 minutes twice per day; it's typically about 1% of their body weight, so if they are quite small, it's not a lot of food, and as they grow, it will be a bit more.
Goldfish are easy to over feed as they like to act hungry all the time, but it's best to stick to a feeding schedule.

Answer 2

1 pinch in the mornig

1 pinch before bed

Answer 3

for every inch your goldfish is give it 4 flakes