How do you keep a pond clean without a filter?

How To Keep Pond Water Clean Without Filter

1. Don’t Overstock The Pond.
2. Don’t Overfeed Your Fish.
3. Engage In Regular Water Changes.
4. Clean Your Pond Regularly.
5. Use A UV Sterilizer.
6. Use A Nano Media Reactor.
7. Use Pond Dye.
8. Have The Right Plants.

Why are my koi sitting on the bottom of the pond?

As temperatures drop during winter, koi metabolism slows down. This affects their energy stores and their swimming behavior. If your pond has frozen over, your koi will gravitate towards the bottom part of the water column, where the temperature is considerably warmer.

How do you neutralize a concrete pond?

TO CURE – Newly cemented ponds release quantities of free lime into the water which is toxic to fish and plants. By curing the pond, this danger is removed. To cure, mix one-gallon household vinegar to each 200 gallons of water in your pond and let set three days.

What does salt do for a koi pond?

Not only does pond salt help to boost your koi’s natural defence to disease, it reduces the effect of nitrite toxicity, it also adds beneficial electrolytes to the water. But most importantly, when used at the correct dose, it will kill most of the common parasites found in ponds.

How do I keep my pond crystal clear?

At a Glance: How to Keep Pond Water Clear

1. Understand that a little bit of algae or discoloration is normal.
2. Use beneficial bacteria to starve single-cell algae that turns water green.
3. Add a wide variety of aquatic plants to starve string algae.
4. Add a larger biofilter.
5. Don’t overfeed your fish.
6. Don’t overcrowd your fish.

Can fish live in concrete ponds?

Concrete ponds can be “cured” and made safe for fish without any special coatings. Keep the newly constructed pond filled for a week, then drain and refill.

Is Cement bad for ponds?

Cement products are safe for pond use.