Koi38
Senior Member
Oct 16, 2006, 8:50 AM
Post #21 of 33
(2874 views)
Shortcut
|
Hi Brandon,
I knew something was wrong(well not that bad wrong ) that's why I had to ask those questions to fix your issues from the source. Now we have more information about your pond we can hopefully fix it right Like Larry said your pump is undersize for your pond of 25tons. Minimun turn over rate should be once every hour, yours is not even half. Once you've included the pipe run, bends, head height, etc you probably pumping 12ton to 13ton the most. I have a 10ton pond and I'm pumping 18tons/hr. Got the point
2) Do you have bottom drain?
Yes What size is your BD???
5) How is the pond now?
The water remains brown in colour but i still can see the fish in the maximum depth of 1 metres.The pond base hasnt been visible.today's water readings are nitrite 5 ppm and nitrate 50 ppm.I'm concerned about the nitrite.
Your ammonia will remain zero since you have lots of zeolite in your filter(by looking on your pics) You shouldn't be adding zeolite in a new pond coz your bio media will take longer to mature. You need ammonia to start the bio cycle.
Ammonia => NitrIte => NitrAte. This could be the reason why your nitrite and nitrate are high. You have to remove the zeolite, do 20% water change and stop feeding for a few days. Then check your water parameters again. Larry's recommendation of adding salt to reduce nitrite was good and bad like he said Coz if you have ammonia spike you can't use zeolite so water change and stop feeding for now.
6) What else do you use as biomedia apart from bioballs
Japanese filter mat.
#What sizes are your chambers, square, rectangle, round???
#From the pic you have jmatts in your 1st chamber and a small partition where water comes from pond. Where is exactly the entry point of the water, from the top or middle???
#Can you remove the partition where the jmatts are or modify your chambers???
I have no experience with bioballs so I can't comment on them. I have jmatts(like the pic....of mine) K1 and Bioflo9.
Since i have installed a PS , everyday i get about 1.5 litres of foam.it is so smelly.Is brown water caused by the DOC? or what?
That's DOC. Its a bit sticky too. I got 12L of DOC on the very first day I add my PS.
is it caused the UV which kills the microalgae ?(in relation to what Larz has said,"dead microalgae is brown in colour and the alive one is green").Should i turn it off?in addition, i switched it on since my pond was first filled.
What UV does is it clamps down the microalgae so our filter can filter it out for flashing/cleaning. I'll leave it ON now.
Jon ,can I demand ur experience?did u switch ur UV on since ur pond was first filled or after the biomedia was mature already?
I've waited for my water to turn green or sufferd from "new pond syndrome" but maintain water parameters check. I did have ammonia spike way above the scale due to imatured filters. Then after six to 8 weeks I switched on the UV coz my wife and kids were complaining they can't see the fish 
Bottom line is you need a bigger pump preferably 30,000L/hr or another one like what you have now. Add lots of O2 in your bio and remove air in your 1st settlement if you have any.
As you can see Larry and I have same comments(well almost) we're koi brothers
rgds,
Jon
"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"
http://s3.photobucket.com/albums/y63/Koi38/
|
MAIN
SEARCH
WHO'S 
LOG 
.The water has been blackish for 3 days.the pond is about 2 weeks old.Does it mean the filter hasn't matured yet?so that the bacteria cant clear it up?btw, my pond is exposed to sunlight for about 3 hours daily..any idea to solve it? 
Re: [brandon] blackish pond
[
Also have you done Andy's advice using a clear glass to check what's in the water? It could be a suspended dead algae
1
