Articles on Fish, Koi and Ponds
Minimum Filtration Requirements for Small Fish Ponds
No matter how small your pond is it is essential to have proper filtration and UV clarifiers... read more »
Pond Food Regulation for Koi Fish
As no two seasons are the same, the safest way to regulate pond food is to use a thermometer to measure temperature, and then feed fish according to this suggested guide... read more »
Water Pollution in Fish Ponds
We have recently introduced a new solution to water pollution called Clinofish. It is a specific type of Zeolite mineral (found in igneous rock) exclusively mined in South Africa, and is a direct substitute for fish pond filter media that scavenges toxic ammonia from pond water... read more »
Do koi self regulate according to pond size?
If you have a small pond with say 3000 liters with ten small koi, the koi will be fine for a couple of months or maybe years while they are reasonably small... read more »
Isivande Bio Grog
We have been using these 15 kg bags of porous stones with great effect. In a pond 100 000 liters the water would never come clear clear until we built a 1m3 chamber with these porous stones in 15 kg bags... read more »
Ball Valve vs. Non-Return Valve
A ball valve and non-return valve are there to shut off water flow or water returning to your pond and bleeding the system, or if the pump is taking a long time to start pumping again... read more »
Electrical Switchboards - Professional Range
sivande build switchboards for professional Koi enthusiasts. All switchboards comply with electrical laws. The boards are metal and powder coated. All switches are selector type with a pilot light showing which pump, UV light or pond light is on... read more »
How many Koi should you have in your Pond?
To determine the amount of fish to put in your pond, you have to measure the square meters of the surface.
To calculate the surface area is simply length x width = m² area... read more »
Stand by Pump
A stand by pump is not only important, but it can save you money. Take the following scenario... read more »
Unions
Why and where unions should be used? Most pond and pool installations are done cheaply as there is a cost factor involved... read more »





