Clownfish Tank Setup ( Complete Guide and Tips 2023)

Clownfish are very common pets of saltwater fish in the aquarium hobby. Their hardy nature makes them easier to keep than other saltwater fish. As long as the water temperature, salinity and pH remain very favorable in your saltwater tank; you probably expect your fish to survive for many years. In any case, you will need to clean the tanks and replenish the water used up by evaporation. I suggest people read the article on nitrogen cycles to learn more. In a saltwater aquarium, the nitrogen cycle is vital. Let’s start Clownfish Tank Setup Guide…

Clownfish (Nemo fish) Care Guide &Species Profile

We all love Nemo fish, which makes beginners especially interested in seeing it enter their home aquarium. Fortunately, clownfish can feed easily while accepting artificial feeding faster than other fish species. These fish have a lot of personality and beautiful color patterns. I’m going to show you all the ways to maintain your aquarium to be as comfortable as it should be.

Clownfish Tank Setup

Clownfish Care: Size, lifespan, cost & compatibility

Clownfish are among the best-known saltwater aquarium species. The adorable and famous striped fish has long been legendary, and its fame is now nearly inscribed in the Saltwater Fish Hall of Fame. This article will explain the best way to keep fish in our aquarium.


Clown fish do not need anemones to reproduce. Depending on the species, different anemones can take on additional requirements, such as feeding, lighting, or substrates. The most comprehensive selection of anemone-hosting clownfish is the curled anemone (Heteractis aurora) and the attached anemone (Cryptodendrum adhaesivum). Most anemones can bite people, so always measure the anemones using gloves. In a short period, clownfish can accept corals or polyps as hosts.


It would be best if you always kept the water variables constant. Typically, a partial water change every two weeks is recommended. Visible algae are removed with suitable abrasive cleaning agents. Investigating the fish’s abnormal behavior and appetite changes can help you know if something is wrong. Most Clown fish have a quick cure rate for minor setbacks but can catch infections such as ick or dropsy.

Clownfish Facts & Overview

There are approximately 30 varieties of clown fish; however, two are among the most widespread varieties. The different species and variety species belong to the Pomacentridae family, including damselfish. Couples themselves have unique characteristics that fascinate aquarists. They form a pair of males to breed, so one of them can reverse their sex. The species lives around six years, but sometimes the animals live up to 10 years.

Clownfish Tank Setup

Typical behavior

These fish can show peaceful and aggressive behavior. The species is resistant to all the toxic elements of the anemone. In the absence of an accessible anemone in the aquarium, the couple needs another place to hide. As soon as they are introduced into saltwater aquariums, they settle in the area of the naturally chosen anemone.

A great fish for beginners or anyone

Clownfish’s natural habitat are in the reefs of the Pacific and Indian oceans. The natural relationship between clownfish and anemones is a significant factor. It is an excellent fish for beginners in saltwater aquariums as it is a beautiful, hardy, and easy to keep fish. They are perfect for any reef tank or even a same species tank.

Disease susceptibility

Most clown fish are very hardy and peaceful fish in the home aquarium. Over the ’90s, the most prevalent concern was Saltwater Ich – as reported by 41% of clownfish keepers. Salt water aquariums are full-time jobs to maintain the proper water parameters, providing a variety of colors as well.

Incompatibility with other community fish

The typical Ocellaris clownfish is usually a peaceful fish. They can be pretty friendly or aggressive fish; some species and types of Clown fish can attack other fish in the aquarium. This includes making it a priority to plan for Clown fish tankmates.

Egg tending

The female will care for the eggs until they hatch. A female clownfish is generally peaceful, but they become aggressive towards other fish (defense instinct) when looking after the eggs.

Raising larvae

The development of larvae will require a lot of dedication on the part of the fish keeper. Take a deep dive into the world of clownfish farming.


Clownfish spawn at different stages as they become more familiar with their environment; they might even start cleaning the spawning grounds before that.


The egg is placed in the nest, prepared before fertilization, and the egg is kept protected and oxygenated by the parents.

Is clownfish right for your aquarium?

These fish are the ideal starting point for you to enter the world of reef tanks. They have a fascinating character in fish, and this is undoubtedly an exciting fact to consider when keeping the species. New owners must have some options and notions when choosing the correct tank sizes to keep their fish optimally. A Clownfish tank is an excellent addition to any place.


Clownfish are omnivores known to eat copepod eggs and larvae in their natural habitat. It’s easy for the animals to accept commercial food, and we can include foods that resemble their wild diet, like Mysis shrimp and brine shrimp. As the only alternative to using algae-free water tanks, spirulina powder and algae-like Nori provide the vegetable portion of the food for them. Just give what the fish eats in a few minutes and remove the uneaten food from the aquarium to avoid water quality degradation.


Clown fish eat almost all fish food. They accept food in flakes, granules, and pellets well, something not very common in the case of saltwater fish. However, they must be given an equally varied diet. Bring fresh/frozen seafood to your diets, such as brine shrimp or Mysis shrimp. Most pet stores will have these foods. Often, the dietary supplement contains plant ingredients such as spirulina or spinach. You can buy Nori seaweed in supermarkets. Proper nutrition is rich in nutrients that fish need.

Habitat and tank requirements

These fish are present in coral reefs in the warm waters between the Pacific and the Indian Ocean. Symbiosis with anemones rarely takes them below 40 meters in-depth and no longer occurs in deep-sea areas due to low light and temperature. It is a weak swimmer, adheres to protected anemones under corals. The waters close to the reefs are very high quality, so they are clear. Reproducing your natural environment with the right water parameters in your Clownfish tank requires some effort on the aquarist’s part, but it’s possible.

Tell me the size of the aquarium?

Each fish requires an aquarium with fifteen gallons of space; this volume allows the fish to swim freely and feed without problems. In any case, it’s better to have more giant tanks available to keep your Clown Fish. The greater the volume of water, the aquarium is less prone to sudden changes in parameters.

Keep the clownfish together

Clownfish should be kept together in pairs.

Prepared Foods

These pet stores that specialize in saltwater fish also sell specialty fish foods. Foods made with premium ingredients are often filled with algae, similar to the natural fish diet. Generally, these foods contain algae such as Nori and Spirulina and essential prebiotics. Clownfish adapt smoothly to any food; the secret is a varied diet.