Asked by: Randall Mencia
pets fish and aquariums

What size filter box do I need for my pond?

30
The rule of thumb is that you should have a filter that is rated for about 1.5 times the number of gallons in your pond. So if you calculated your pond contains 400 gallons, 1.5 x 400 would mean a filter rated at 600 gallons per hour (gph).


Besides, do you need a filter for a small pond?

No. If you are intending not to have any fish, or you're creating a wildlife pond with high plant stocks and just a few fish you may choose not to have a filter, and try to create a natural balance instead.

Beside above, how do I keep my pond water clear? Follow our 7 tips below to help keep your pond water clean!
  1. Maintain a healthy fish population.
  2. Don't over-feed your fish.
  3. Create a proper balance of plants.
  4. Choose the right size pump for your pond.
  5. Clean debris from pond before it has a chance to decay.
  6. Choose proper filtration for your pond.

Beside above, how do I know what size water pump I need?

Measure the diameter of the fountain spout with a tape measure. You will be calculating the gallons per hour, or GPH, by multiplying the diameter by 100. For example, if your fountain spout is 1 inch in diameter: 1 x 100 = 100 GPH, your pump will need to be rated at 100 GPH.

What is the best filtration system for a koi pond?

Best Filter for Koi Pond Reviews

  1. XtremepowerUS 10000 Koi Pond Pressure Bio Filter UV Sterilizer.
  2. Grech CPF-2500 Pond Bio Pressure Filter.
  3. Tetra Pond Bio-Active Pressure Filter with UV Clarifier.
  4. OASE BioSmart 5000 Pond Filter.
  5. Aquascape Submersible Pond Water Filter.
  6. CNZ All-in-One Pond Filter System with UV Sterilizer.

Related Question Answers

Lester Walczak

Professional

How do you make a large pond filter?

Steps
  1. Get a bucket or trash can with a sealable lid.
  2. Purchase a water pump if you don't already have one.
  3. Lay out where the pump and filter will be located in relation to the pond.
  4. Buy rubber hose to connect the filter to the water pump.
  5. Cut a hole in the lid of the container that's just large enough for the hose.

Velizar Schittkaker

Explainer

How do you make a pond step by step?

Steps
  1. Call the dig line before you start planning your pond.
  2. Choose a location for the pond that is accessible and away from trees.
  3. Plan a pond that is a minimum of 7 by 4 ft (2.1 by 1.2 m).
  4. Make the pond a minimum of 1.5 ft (0.46 m) deep.
  5. Choose a pond shape with rounded corners.
  6. Use a spade or an excavator to dig the pond.

Cristi Herbin

Pundit

Do you need a pump in a pond?

Water circulation is not essential but the use of a pump will allow you to keep more fish, it will keep your plants healthier. A pump is required to run a filter, fountain, or waterfall. The sound of running water adds greatly to the enjoyment of the pond. Most ponds will benefit from the use of a biological filter.

Mei Whittingham

Pundit

What can I use for pond filter media?

Just like plants, different filtration media provide different amounts of water filtration, so we recommend a healthy mix of media pads, like Matala® Filter Media Pads, and Filter Media Pads pre-cut and by-the-foot; ridged plastic balls, like The Pond Guy® BioBalls™; and curly plastic strips, like Bacti-Twist®

Kacie Kabalkin

Pundit

How do you keep pond water clear without filter?

How To Keep Pond Water Clean Without Filter
  1. Don't Overstock The Pond. One of the first things to keep in mind when you are not using a filter is to not 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.

Sare Berkenstrater

Pundit

What is the best filter for a small pond?

Selecting the Best Pond Filters in February, 2020
Product Size Rate
(Editor's Choice) Choice Products 2500 gallons 2600 GPH
Jebao CF-10 850 to 1250 gallons 1500 GPH
POND BOSS Filter up to 500 gallons 320 GPH
TetraPond 26596 500 and 4500 gallons 500 to 4500 GPH

Liling Tzakh

Pundit

What is the best pump and filter for a pond?

Best Pond Pump Reviews
  1. Tetra Pond Debris-Handling Pump Energy Efficient.
  2. Aqua Pulse Hybrid Drive Submersible Pump.
  3. Tetra Pond Water Garden Pump, Powers Waterfalls/Filters/Fountain Heads.
  4. Little Giant WGP-65-PW Premium Pond Dual Discharge Pump.
  5. AQUANIQUE Waterfall Pump.
  6. Alpine PAL2100 Cyclone Pump.

Maghnia Scharpey

Teacher

Do I need a filter for my koi pond?

Why do you need a filter for your Koi pond? However, I often see ponds with no filter. In many cases, hobbyists think they have a good-sized filter for their pond; but it turns out it is not big enough at all. Every Koi pond must have an appropriate filter system so that the Koi can live healthy and comfortably.

Mesalina Kwan

Teacher

How do you clean a pond filter?

Cleaning the mechanical filter is easy. You simply remove the mat or debris net/basket, dump out the debris and rinse it with a garden hose. This can be done as often as you like or as needed when you see the water flow slow down.

Pearly Markowsky

Reviewer

Do outdoor ponds need filters?

Your natural pond won't need a pump or filter because the many small rocks on the ledge will harbor beneficial microbes to keep the water clean. Native cattails can seed themselves on the planting ledge of a backyard pond.

Noufal Moerser

Reviewer

What is a pressurized pond filter?

Pressurized Filters With a pressurized filter, water from the pond is pumped into the filter where it exits under pressure. These units can be installed anywhere around the pond and can be buried for easy concealment.

Galadriel Jadrov

Reviewer

How long can pond fish survive without a pump?

In this shallow water, the movements of the fish will cause the water to circulate so it can pick up more oxygen from the water surface. The fish can survive under these shallow-water conditions for more than two days, maybe even a week or more, unless they are really crowded or not in full health to start with.

Mendia Paluk

Reviewer

Can you keep goldfish in a pond without a filter?

The only time we'd suggest keeping fish in a pond without a filter is with lightly stocked goldfish in a heavily planted pond with regular maintenance. For ponds with lots of goldfish, or larger koi, a filter system is almost always needed to keep up with the biological load fish produce.

Judita Jluktov

Supporter

Can you have a garden pond without a pump?

It is indeed possible to have a healthy pond without a pump as long as it contains plenty of aquatic plants. Filters are only really essential if you want large numbers of fish, and if you want a pond for wildlife you certainly don't want those.

Abdelmajid Maryanovsky

Supporter

Can I build a pond without a liner?

No pond liner needed
It's definitely possible to build a pond that is waterproof without one. We used bentonite clay to make sure the soil would retain the water. Some soils would retain the water even without this, but in most cases it would be recommended to add some to be sure that the pond doesn't start leaking.

Ariadna Bancells

Beginner

How do I keep my pond from turning green?

Keep your pond from going green by using proper pond management principles and, as a last resort, chemicals that kill algae blooms.
  1. Keep livestock and pets away from your pond by using fences, trellises, hedges or similar barriers.
  2. Avoid or minimize the use of plant fertilizer around your garden pond.

Tamra Bachmeir

Beginner

Does a waterfall oxygenate a pond?

Most pond waterfalls aerate the area beneath and around them, but they cannot provide oxygen for the whole pond, nor should they.

Todorka Tapias

Beginner

How do I circulate water in my pond without a pump?

Solar aerators don't require water to function, and instead need to be installed above the water on the sides of the pond. The pump usually comes with diffuser stones which are then placed below the water surface so the air pump can push oxygen directly into the pond.

Naike Luto

Beginner

How strong of a pump do I need?

A good rule of thumb is that pumps should be able to pump out about half the pond volume every hour. So a pump that moves 500 gallons per hour would be appropriate for a 1,000 gallon pond. To determine the size pump you'll need, make a few measurements and calculations.

Co-Authored By:

EveryThingWhat Staff Editor

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6th June, 2020

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