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Home: KOI Talk: Pond Construction & Water Filtering System:
I wish I'd found you guys sooner

 





 


Anonymous
Anonymous

Jul 31, 2000, 12:32 AM

Post #1 of 5 (791 views)
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I wish I'd found you guys sooner Can't Post
Hi all. Stumbled across the site through the high nitrate post. I replied about how trickle filters are a thing of the past for most advanced aquarists now. It's near the bottom but I'm hoping someone could respond to my denitrification question. Anyway, I work as an aquarist at a pet store and we also deal with ponds. Being what I consider a more responsible aquatic care-taker, I have many gripes about the "filters" we sell. I believe, and correct me if I'm wrong, that a pond with the right fish population to pond size ratio, filtration is not really needed. Does the water really need to be crystal clear? The filters we sell are small bio-filters by TetraPond, the BioForce (that's a joke), and the PondMaster Supreme pads, which are more as pump pre-filters. Customers are always looking for a filter to cure green/cloudy water and look for pads to do it. Am I wrong or do you guys use large, elaborate filters to keep the water clear. If so, what kind are they?


Mark
Koi Kichi

Aug 1, 2000, 10:58 AM

Post #2 of 5 (791 views)
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I wish I'd found you guys sooner [In reply to] Can't Post
There are many questions in your post. Let me try answering them.
Q1.I replied about how trickle filters are a thing of the past for most advanced aquarists now. It's near the bottom....
A1. I am surprised.

Q2. ..I'm hoping someone could respond to my denitrification question.
A2. What is your question on denitrification?

Q3....that a pond with the right fish population to pond size ratio, filtration is not really needed.
A3. That's incorrect.

Q4. Does the water really need to be crystal clear?
A4. For most of us hobbyists, the answer is a BIG YES.

Q5. The filters we sell are small bio-filters by TetraPond, the BioForce (that's a joke), and the PondMaster Supreme pads, which are more as pump pre-filters. Customers are always looking for a filter to cure green/cloudy water and look for pads to do it.
A5. Your question contradicts Q3.

Q6.Am I wrong or do you guys use large, elaborate filters to keep the water clear. If so, what kind are they?
A6. The word large is unclear. I would say the surface area to be at least 30% of pond.

Hope this help.


Anonymous
Anonymous

Aug 4, 2000, 1:26 AM

Post #3 of 5 (791 views)
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I wish I'd found you guys sooner [In reply to] Can't Post
Hey Mark (BTW my name is Marc also), thanx for answering my post. In reference to my denitrification question, I am simply wondering what is removing nitrate in a trickle system. Because all NH3/NH4 is altimately converted to nitrate, how is it removed. Only aerobic bacteria can thrive in a wet/dry setup, and they do not break down nitrate. Are there any anaerobic areas in these filters you use? I always asumed it was the plant population in the water which was responsible for nitrate uptake. Secondly, in regards to the water clarity issue, I live next to several ponds that house many thriving fish species including ornamental koi, commets, and fantails. The water is not clear, but the paremeters are fine (Ammonia-0,
Nitrite-0, Nitrate-0). Is it more for personal preference that the water should be sparkling?


Khoobg
Webmaster


Aug 4, 2000, 1:34 AM

Post #4 of 5 (791 views)
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I wish I'd found you guys sooner [In reply to] Can't Post
Hi FishBait,

I have running my trickle filter two years and having vegetation along side and the nitrate value has been extremely low all the while. I have recently remove all vegetation (three months again) and the nitrate level still remain as low as before. Trickle filter is definitely doing the job of nitrate removal even though many do not know exactly how !!


Ben
Koi Lover

Aug 4, 2000, 3:53 AM

Post #5 of 5 (791 views)
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I wish I'd found you guys sooner [In reply to] Can't Post
I have performed some search on denitrification via www but documents I found tend to say that anoxic condition is difficult to achieve. Trickle filter system is on the other hand easy to set up and operate. Hence why go for something that is more difficult and yet produce the same result ??

 
 
 



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