goldfish Growth

[fvelements]

I have two fantail Gold Fish in 36"x18"x24" tank. They are happy with their life,playing aroung with water bubbles from air pump. My question is,how long does they take to reach 6" length?

I dont see much growth happening to them..

Thanks!

[Joonkun]

what are you feeding them and how often?

[fvelements]

I feed them twice daily. Mix of 'pellets'/'Sipulina'/'blood worms'. In the morning once, and in the evening. But is smalle quantities. Around 25 pellets for two fishes at one serving.

Tank is well maintained,water regularly changed.