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Home: KOI Talk: Pond Water Quality:
bought a house with small pond, can anyone help a newbie pond owner?

 






 


patient77
New User

Apr 13, 2007, 1:30 PM

Post #1 of 4 (1817 views)
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bought a house with small pond, can anyone help a newbie pond owner? Can't Post

Here are the issues I am having. At the start of spring, I used Tetrapond algae control. Suddenly, my pond became cloudy and green. I'm not sure if it was the chemical I put in, or just the change in weather. My liner is very slimy and discolored....
I was hoping someone more experienced could help me with questions on cleaning my pond. What is the best way to clean my liner? The guy at the fish store said to empty the pond, and use a 90 pct water/10 pct bleach solution and scrub all the gunk off the liner. Does that sound right?
Next, after cleaning the liner, should I use completely fresh tap water to refill the pond? I bought the Tetrapond Water Treatment stuff that takes the chlorine and other stuff out to make the tap water okay for my koi and goldfish. OR, should i fill something like half my pond with new tap water and the other half with the old water that had some algae and junk in it. Tetrapond website says to only replace 30 pct of the water with new water, but I'd really like to get a clear pond... I'd hate to fill my new pond with new tap water and then have all my fish die because I didn't calculate the right amount of water treatment solution or forgot to do something else....
Is replacing some or all the pond water a frequent part of pond maintenance, or something that is done very rarely? And what would you recommend is the safest way to clean a dirty pond liner, as I'm pretty sure using soap and water could be dangerous to the fish.Any help appreciated. Thank you very much..


Edit to my original post with further details:


I live in Zone 7, Maryland. My pond is pretty small, my estimation is 6 feet by 6 feet and i guess 2.5 to 3 foot deep. I have 11 small golfish and 3 small koi fish, the smallest around 5 inches, the largest, 8 inches. No plants. I have a biological filter I'm told, which sucks water from the bottom, goes through a bag of pellets/stones in a filter, and pumps back into the pond. I'm looking for a very low maintenance pond that is basically clear. My wife just bought a couple of plants from the pet store that I assume we just throw on top of the water. They came prepackaged for ponds.
The algae isn't that bad, definitely not anything I can scoop. I moved into the house last October, and run the filter 24 hours a day. At the time I moved in, to up until a few weeks ago, I could see the bottom of my pond. However, after adding that Tetrapond algae control and the change in weather, its been cloudy and I can't see my fish unless they are on top. I cleaned the filter about once every two weeks in the fall and everything was great. Turned off the filter during the ice and winter, and restarted it in early March.
My wife really wants me to change the water and to clean the bottom of the liner, as it looks pretty gross.
Should cleaning the liner and replacing most of the water be avoided completely? It would seem like a logical way to "restart" fresh and clear.
I just read a bunch of articles online, and most say to avoid chemicals such as bleach, so i'll definitely avoid that. Most say to just power wash the liner with a garden hose and brush the gunk off with towels, etc....


(This post was edited by patient77 on Apr 13, 2007, 2:02 PM)


koiguyoz
Member


Apr 14, 2007, 9:40 AM

Post #2 of 4 (1778 views)
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Re: [patient77] bought a house with small pond, can anyone help a newbie pond owner? [In reply to] Can't Post

That's quite a lot you've been through!

First I would like to know how you clean your filter. Do you wash it in tap water or do you use water from the pond to rinse it in?

The chlorine in tap water is harmful to the positive bacteria that live in your biological filter pads. Most often they die, and you are left with very little positive bacteria to convert waste products in the water.

Huge water change? Unless the water is matched closely in terms of PH and temperature, your fish will be highly stressed when you do such a huge water change.

Your pond liner should normally have short hair algae growing all over it. This is a good indicator of water quality. There is no need to clean this at all, as the fish can have this as their snack.

Spring
As you know when Spring is around, everything blooms including algae. Couple this with the fact that you've had the filter off in Winter, and you've got a new pond syndrome teamed with a Spring time algal bloom. The addition of the algae control may have added more fuel to the fire if it was an algaecide.

Best ideas are to:

*Continue the filter all year around
*Increase the level of rocks in the filter or create a trickle tower to help the situation.

Maintenance should occur very rarely in a high surface area biofilter with the right water pump and water flow in the pond.


patient77
New User

Apr 15, 2007, 10:57 AM

Post #3 of 4 (1755 views)
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Re: [koiguyoz] bought a house with small pond, can anyone help a newbie pond owner? [In reply to] Can't Post

i do clean the filter using the garden hose. i had no idea that it could be damaging to do so!!! thanks for the heads up. i appreciate your advice and am doing as much research as possible. will definitely try a few different things and won't get discouraged if i dont see improvement right away.


thanks!!!


hazard
Koi Lover

Apr 28, 2007, 4:33 PM

Post #4 of 4 (1669 views)
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Re: [patient77] bought a house with small pond, can anyone help a newbie pond owner? [In reply to] Can't Post

Hi, I would definitely add a UV filter which normally you feed the water through before it goes to the main filter. this doesn't get rid of the stringy green blanket weed but it will get rid of any green water so you can at least see the fish.
The UV filters work really well and are in my view the best advance in pond keeping ever made.
failing this, you need to keep the pond out of full sun, try to create some shade for the pond.
Good luck

 
 
 



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