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Home: KOI Talk: Pond Construction & Water Filtering System:
OASE BIOTEC 18 FILTER

 





 


rob32
Koi Lover

Sep 10, 2007, 1:48 AM

Post #1 of 5 (1320 views)
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OASE BIOTEC 18 FILTER Can't Post
HI,
COULD ANYBODY TELL ME PLEASE HOW OFTEN SHOULD I CLEAN THE FOAM FILTERS INSIDE THE FILTER BOX. I HAVE BEEN CLEANING THE SIEVE EVERY OTHER DAY DUE TO IT GETTING CLOGGED WITH DIRT. IS THIS CORRECT?


tancho_boy
Koi Lover


Sep 11, 2007, 11:25 AM

Post #2 of 5 (1281 views)
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Re: [rob32] OASE BIOTEC 18 FILTER [In reply to] Can't Post
biotec 18 gives u a a max-flow of 12k l/h. recommended water volume (for the 5-year clear water guarantee) for a highly stock pond is 13k liters ~2900 emp gallons. well my supllier says if following the recommended config, cleaning is once in 2 months.

what are your pond config rob?
had my biotec 36 for 3-mths and have never cleaned it up yet!!


rob32
Koi Lover

Sep 11, 2007, 6:38 PM

Post #3 of 5 (1260 views)
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Re: [tancho_boy] OASE BIOTEC 18 FILTER [In reply to] Can't Post
Hi,
Thanks for the help. I have a 3000 gallon pond,with the biotec 18 and 25 watt uv. The pump is a aquamax echo 8000 ltr. I have also got 2 large air stones in the pond and one in the filter for oxygen. I did clean the foam yesterday (using pond water) and found they were very dirty. I also put a medium piece of foam under the seive in the filter to try and help with the amount of dirt i seem to be getting in the filter. Is this correct? I have 12 koi in the pond between 3 inch and 8 inch is this ok and not overstocked for the size of my pond. thankyou for the help,i look forward to your reply.


tancho_boy
Koi Lover


Sep 13, 2007, 6:06 AM

Post #4 of 5 (1215 views)
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Re: [rob32] OASE BIOTEC 18 FILTER [In reply to] Can't Post
by right, it should be ok with the setup. dun worry with the extra help for the sieve, i dun see any harm.

your stocking is fine, at a premium fish stock should be 1000 liters (~250 emp gallons) per fish. and thats spoiling your fish really!!

so i guess the underlying problem here could either
a) be too many fish shit - are u overfeeding?? (but i doubt so because ur not overstocking)
b) other debris - potted plants, leaves from trees etc

hows your pond like btw? it is clear water? are the fishes ok? water parameters??


rob32
Koi Lover

Sep 13, 2007, 3:43 PM

Post #5 of 5 (1199 views)
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Re: [tancho_boy] OASE BIOTEC 18 FILTER [In reply to] Can't Post
Hi ,
Thanks for the reply. My pond seems a whole lot clearer now since cleaning the foam filters the other day. However i have now noticed 3 koi that now have ulcers underneath the stomach?? The pons has been up and running now about 8 weeks ans i used biostart for 4 weeks before putting any fish in. The PH is 7.5,the nitrite is zero and also the amonia level is zero. I have booked the day off work today to go to the local koi shop and buy some treatment. I dont think i overfeed,sometimes i have fed 4 times a day but only small quantities and they eat everything within a couple of mins.Anybody any ideas??

 
 
 



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