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I was thinking the exact same thing on the filter... its not efficient. On the next water change I am planning to: 1. Add a layer of hydroton or...

Is there an old retaining wall between the "filter" tank and the upper pond? It would appear there is a wall that may have separated the two, but my...

Most likely safe after cure period. Best to contact mfg. Epoxy or expanding urethane available. I've seen a zoo using to repair an aquatic...

Beautiful and unique pond set up. Richard helped me understand that it could take 2-3 weeks after a successful fluke treatment for the fish to stop...

All three are pretty blooms but the Datura is awesome!

hmm, hadn't thought about using that type of material, interesting idea-- are all the products/compounds used for that application fish safe?

I could be wrong, but I don't think that you are getting the best use of the matting in the filter. Most of the water is going over the top and not...

Don't try to hit a particular pH value. They are happy in a wide range of pH values, but they are not happy if the pH is jumping around. Get a good...

Hello Masa. Welcome to Koiphen. We love seeing pics of our members turtle. :) There is another forum you may like to check out too. It has...

Nice video with the exception of the bull fighting.

Dropping faster than adjacent pond indicates you're correct. When the weather gets nice and if you find a crack there are products where you drill...

I'll change it up a little more, but no lilies. These plants are suitable as marginal plants; many folks use Impatiens and Calla lilies around the...

Gulp! I hope not, but I understand your thought process there. The reason I suspect leak vs evaporation is that the island pond/doughnut pond has...

The head difference between the pump and TPR will be perhaps two feet at best. However, I could put these pumps in a pit a the same depth of the...

I use Aquaboon Big Blue 2 stage filter https://youtu.be/xZCuB6VPvao

Things to note from Zac's testing. Pumps such as the Periha and Alpine Eco-Twist had grossly exaggerated mfg performance numbers. At the same...

Pond has a large surface area. Even in cold months when not iced over the effect of sun, wind and humidy surface evaporation is a factor. 1 inch a...

There's NO WAY you will get 12000 gph out of two Periha PB-25000 pumps in a real world scenario. I have eight of them so don't take that as a...

Hi Grumpy, So the top pond IS a leak culprit, and currently has some "bubbling" under previously sealed areas and will need to be addressed this...

FYI Here are real world test results on a Periha PB-20000 that's rated for 4625 g/h. Notice at 5 feet of head pressure it's already less than...

I tried to give many away last year locally and no takers. Ended up all going to recycling.

Since designing from scratch and energy efficiency mentioned here are a couple of sites to look at. Due to high energy costs the Europeans are much...

S&G units are for "polishing" the water - removing very fine particulates. While all filters have some bio action, that is not its primary function....

Monte, I am so lucky to have access to deep experience like yours and others here. I compared two Periha pumps to FlowFriend, Goulds and...

Any of the whole house filters from Omni, GE, A O Smith, etc... At your local big box stores or Amazon. Prices for housings start in $20 range. ...

Wow to my surprise the seeds germinated:yes:

Sucked into a round pipe for a couple of seconds? :shrug: Garfield

I saw the ph was about 6.5 I was going to try to raise it to about 7 I will get a kh test as I don't have a fresh one. I didn't touch the areas but...

I guess they are worth whatever you can get for them. Most of us have just thrown them away. Not much value. Just a magazine. pm sactownkoi and...