why do my baby koi carp keep floating on their sides?

pokewade asked:

i have recently bought some baby koi for my new pond that we just built. All was going well until recently some of them have starting floating on their sides also we took the first one out of the pond and it died the next morning. i was just wondering do i remove [...]

will the dirt of pigeons exactly near a koi pond do any harm to the fish or water ?

nmdmnmdm asked: I also have a stugeon, tench, orfe, danios and rosy barbs in the same pond.

What are good plants/shrubs to create plenty of shade for my Koi pond?

trev1690gers asked: I’m needing plants/shrubs that can be planted in large planters. The reason I require these is to create shade for my Koi pond to aid in getting rid of unwanted Algae growth.
Any suggestions would be greatly appreciated.