Pond newbie!

So my new place I just moved into has a pretty cool pond already placed in my front patio.
I've always wanted a koi pond, but I don't know a lot about them, so anyone that does feel free to post advice or comments.
I do know it is not as deep as I would have built, less than 3 feet which I know is what most recomend, but somehow their fish have been thriving for years w/out any real predation.
I think these are just carp, but still cool to me, but I plan to add some color, thinking maybe something not too expensive, shabunkins maybe, maybe a couple butterfly koi.
Someone suggested a pleco for algae/cleanup, can those hang in a pond?
I do know it has pretty darn good flow.
Not sure what these lilies are, but they seem to do well, can I add anything else that will not become invasive?
They are topping off w/ tap, but I don't see any major HA or anything.
I also want to scape around it better, what plants might be cool?
I do wish to keep it fairly simple.

http://i38.photobucket.com/albums/e1...psf73d86c9.jpg

http://i38.photobucket.com/albums/e1...psb2e7d6b0.jpg

http://i38.photobucket.com/albums/e1...ps5eb9121e.jpg

That's awesome can't wait to see outcome.

Nice pond :beer:

Their pretty easy to take care of, just backwash the filter and change the water every few weeks. Regular additions of a barley powder should help keep the algae down. I like the clarity max brand. Also, tap water is fine for ponds, just make sure you de-chlorinate everything.

The lily is some kind of Nymphaea, they grow quick in the summer and slow in the winter. If you want a cool, coldwater algae eater try hifin carp. Their awesome when their big.

Nice place Dave. .

Want a bullfrog that is in my pond, or some red eared sliders?

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Originally Posted by knightnsd

Want a bullfrog that is in my pond, or some red eared sliders?

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That's a very cool offer, and originally I was thinking about frogs, but my neighbor said sometimes the frogs get out of control noisy, so now I'm holding off on that plan.
Turtles, I guess they had one for quite a while and it was cool, I would consider one or two, I think, especially if small, but would they mess w/ any of my fish?
I might get some mosquito eaters that would be small enough that they could catch/eat them.
How big are your turtles?

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Originally Posted by Funkateer_1

Nice pond :beer:

Their pretty easy to take care of, just backwash the filter and change the water every few weeks. Regular additions of a barley powder should help keep the algae down. I like the clarity max brand. Also, tap water is fine for ponds, just make sure you de-chlorinate everything.

The lily is some kind of Nymphaea, they grow quick in the summer and slow in the winter. If you want a cool, coldwater algae eater try hifin carp. Their awesome when their big.

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Awesome, thanks for advice!

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Originally Posted by jada1

Nice place Dave. .

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Thanks Danny, and there is so much more to it, nice back yard w/ a view, country livin' just 10 miles from the ocean, love it!