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Best Sponge Filter

Sponge filters have been around for decades; in fact, they were likely some of the first filters ever used by aquarists. While many truly are a sponge attached to an airline hose, this basic design has been improved upon by inventive manufacturers time and time again over the years. Nowadays we have options that greatly …

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Two large koi in an aquarium

How Big Do Koi Get

Koi fish are a very popular ornamental fish and for good reason. They can be found in beautiful koi ponds across the world. One of their key characteristics that is hard to miss is their size. But just how big do koi fish get? How Big Do Koi Get? The largest koi known as jumbo …

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Colorful koi in pond with orange, red, white, black and yellow colors

What Are Koi Fish?

No doubt you have heard the term koi fish or even seen some of them in an ornamental pond. But what exactly is a koi fish and where do they come from?  What are Koi Fish? Koi fish are a colorful, ornamental species of fish that were selectively bred from common carp in eastern Asia. …

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Man cleaning backyard garden pond with a net

How to Clean a pond

A goldfish or koi pond is a great addition to any backyard. But if it isn’t properly maintained or cleaned it can quickly become an eyesore.  Depending upon how filthy your pond is you may be able to get by with a little tidying up or you may need to do a full cleanout. If …

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CO2 tank with regulator and meter

Finding the Best CO2 Regulator

As an Amazon Associate, we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! Carbon dioxide (CO2) regulators are an essential part of the planted aquarium keeper’s toolkit. But to safely bleed off CO2 in amounts small enough you need to ensure you have the best …

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clear plastic CO2 reactor on a blank background

co2 Reactors, Diffusers, and Atomizers. Which is the Best?

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! Carbon dioxide (CO2) is a limiting factor for successful plant growth in freshwater aquariums. Without adequate CO2, it doesn’t matter how much light or fertilizer you offer your plants; they simply won’t …

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Long lived Koi in pond

How Long Do Koi Fish Live?

So, how long do koi fish live? These fish can live to be anywhere from 20 to over 200 years old. The average life span is between 20-50 years old. If you are considering keeping koi fish you sure need some real commitment! The longest-lived koi fish is a female named Hanako. She lived to …

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small iced covered koi pond

Koi Pond Winterization

“Fish pond in winter” by Muffet is licensed under CC BY 2.0 As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! A well-stocked koi pond is quite an investment. That’s why when the temperature drops, proper koi pond winterization is so important. Fall Preparation In …

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two betta fish separated in tank by divider

betta fish tank dividers

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! What’s the major downside to keeping betta fish? In my opinion, it’s the fact that they must be kept separate due to their aggressive nature. To remedy this, you can opt for …

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hand feeding live food to an axolotl

axolotl Food & Feeding

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! Deciding what Axolotl food to offer is a major part of keeping these ancient-looking amphibians alive and healthy. While they aren’t difficult to feed Axolotls won’t always accept the foods you offer.  …

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Betta fish in tank with black substrate

7 Great Betta Fish toy ideas

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! Betta fish are known for their curious inquisitive nature. Any good betta owner will want to do everything they can to ensure their little gem is healthy and happy. This includes having …

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Sponge filter for aquarium on white background

Do Betta Fish Need a Filter?

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! Like many people, I used to keep Betta fish in a small bowl without using any equipment. The fish store always displayed them in a jar. That’s why I assumed they should …

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Betta fish laying down against driftwood

Do Betta Fish Sleep?

Do betta fish sleep?  For someone new to betta fish, this is a question that sometimes comes up. You may see your betta laying down on some plants or some decor and wonder what’s going on. The short answer is yes, betta fish do sleep. In fact, all fish sleep. But they don’t sleep quite …

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betta bowls on shelf with not heater

Do Betta Fish Need a heater?

As an Amazon Associate we earn from qualifying purchases. The Witty Fish is reader-supported and we hope you love the products we recommend! No doubt you’ve seen all of those cute bettas in little containers at the pet store. No filter, no decor, no heater. Many betta owners have cute little betta bowls with nothing …

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