Hello All...
My 2000 gallon Koi pond ( New Jersey ) is about 5 years old, and overstocked, largest koi about 15" long, the rest are smaller.
Had a huge algae problem... installed a 60 watt uv lamp.
The Green Pond Turned Into a brown pond ( dead algae ).
Had a old above ground pool sand filter given to me, so I Installed it In line with the pump / waterfall.
The sand in the filter trapped all the debris, but the brown dead algae passed straight through, apparently the brown dead algae was too small to be trapped.
I read someplace that Zeolite crystals ( sold in pool supply stores ) was capable of trapping much smaller particles, so I replaced the sand with zeolite.
The zeolite trapped EVERYTHING, including the brown dead algae, and the water is now crystal for over 5 months.
Added bonus... undetectable ammonia levels for 5 months despite overstocked pond.
I have an automated sensor to back flush the filter when the waterfall flow drops below 70% to clean the debris from the zeolite, and I think the flushing is also removing the absorbed ammonia from the zeolite ( not sure ).
Don't know if this system will help any one ... but It sure keeps my pond clean.
Best Regards,
Liam
My 2000 gallon Koi pond ( New Jersey ) is about 5 years old, and overstocked, largest koi about 15" long, the rest are smaller.
Had a huge algae problem... installed a 60 watt uv lamp.
The Green Pond Turned Into a brown pond ( dead algae ).
Had a old above ground pool sand filter given to me, so I Installed it In line with the pump / waterfall.
The sand in the filter trapped all the debris, but the brown dead algae passed straight through, apparently the brown dead algae was too small to be trapped.
I read someplace that Zeolite crystals ( sold in pool supply stores ) was capable of trapping much smaller particles, so I replaced the sand with zeolite.
The zeolite trapped EVERYTHING, including the brown dead algae, and the water is now crystal for over 5 months.
Added bonus... undetectable ammonia levels for 5 months despite overstocked pond.
I have an automated sensor to back flush the filter when the waterfall flow drops below 70% to clean the debris from the zeolite, and I think the flushing is also removing the absorbed ammonia from the zeolite ( not sure ).
Don't know if this system will help any one ... but It sure keeps my pond clean.
Best Regards,
Liam