Growth Rate (diff. between indoors/outdoors) Options

[Ranchu_Lord]

What is the missing element in keeping ranchu indoors compared to outdoor ponds or farms?Seems to be growing slower than those kept in outdoor ponds.

[CP]

IMO green water.Free floating algae rich in protein for growth and carotene for colouration.They also seems to be eating algae from walls 24/7.Maybe higher DO level also helps.

Just my guess.

[HappyBuddha]

 
IMO green water.Free floating algae rich in protein for growth and carotene for colouration.They also seems to be eating algae from walls 24/7.Maybe higher DO level also helps. 
 
Just my guess. 

There's little doubt that green water is good especially when you do it right.

But then maybe the lord is overlooking one thing when comparing keeping goldfish indoors vs outdoors -- the volume of (clear or green) water.

Try placing your overstocked 2 ft tank outdoors and I'm sure the fishes won't benefit much from being 'outdoors' except perhaps getting a little sun (and whatever effect you could derive from tanning your fishes.)

My point is you can achieve quick and large growth too if you keep your fish indoors in a tank of same volume as one positioned outdoors.

[CyberET]

There's little doubt that green water is good especially when you do it right. 
 
But then maybe the lord is overlooking one thing when comparing keeping goldfish indoors vs outdoors -- the volume of (clear or green) water. 
 
Try placing your overstocked 2 ft tank outdoors and I'm sure the fishes won't benefit much from being 'outdoors' except perhaps getting a little sun (and whatever effect you could derive from tanning your fishes.) 
 
My point is you can achieve quick and large growth too if you keep your fish indoors in a tank of same volume as one positioned outdoors.

eh, u failed to mention stuffing the fish with food