Hi laniers03, Ph levels should be maintained between 7.6 and 8.4. Once you get your Ph into the middle of that range, it would be a good idea if you could find some crushed oyster shells to put into your filters. Place them in a very fine net bag (panty hose works good) […]
thanks for the reply Edgar. The waterfall we have is only 4 1/2 foot high and the water flows a little too quickly, I think, so adding a new, deeper waterfall form (something we wanted to do from day one and add media to that too) and a ball valve might do the trick. […]
Barbara,
I would say you are fine. I have a CalPump 5500 with a 4000 gal pond and an 8 foot waterfall and everything works fine. You might get by on less but what counts as to too much as how long the water stays in the filter and the […]
You need a UV filter, it’s the only thing that will really work on a long term basis without harming fish.
Edgar
On Jul 31, 2008, at 5:18 PM, vico_guerrero wrote:
> I installed a koi pond about a month ago. It has filtration pump water > was clean and clear for about 3 weeks, the […]
Hi Vico. When was the last time you did a water change? If you haven’t yet, make a one third water change from the bottom of the pond because that’s where the toxins congregate. Water changes should be done monthly or every six weeks just to keep the nitrates down. It […]
I do believe in homemade biofilter because I have created my filtration system. One third of my biofilter consisted of a barrel filter similar to the picture in this link: http://www.enkoi.com/prod57.html Similarly, I use a 55 gal barrel with twice the amount of matting used plus a bag of lava rocks in plant baskets made […]
If you are going to keep 60 koi in 1900 gallons you need a 3000 gallon filter.
A 1900 gallon pond with a really good filter might be good for 5 koi.
Bill
Hi Don, You are absolutely right about that fact that we can never have “TOO MUCH biofiltration with koi in the pond.” In my fitration system, 50% in volume is taken up by the japanese filter mattings, which is similar to matala, but are more fine and denser. The lava rocks are placed in the […]
The japanese matting is used for both mechanical and biological filter. I have one section of the filter system of approximately 50 gal. with about 1.5 cubic foot of matting used for mechanical filtering. Then the cleaning water flows up through basket filled with lava rocks and then to the second section of the filter […]
The Ultima series of pressurized filters is an outstanding biofilter system. The Ultra Bio-Tube (Plastic bio do-dads) the Ultima filters uses is specifically made with of a material that has very high surface area for the bacteria to colonize. The media is designed for high flow rates with low head loss, is designed […]