10 Best Fish For A Bowl Without Filter

Wednesday, April 3rd 2019, 1:57 pm

By: News On 6

Best Fish For A Bowl Without Filter

Bowls are great for tiny critters like Snails & Shrimp but are they great for Tropical Fish?

And if so what kind of fish can live in a bowl?

I hope to help you answer those questions but first, to be brutally honestI don’t like bowls!

They are too small, get dirty too fast, difficult to scape and most people don’t take the time to research bowls before jumping in.

That said, if you have some experience with keeping fish in smaller tanks successfully then a bowl may work for you.

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So What Kind Of Fish Can Live In A Bowl?

Most bowls are too small to have things like lights, filters, bubblers, and decor so I recommend you look at fish that are very hardy, small and possibly cold water species of fish.

Why hardy fish?

Well, bowls can become toxic very quickly and depending on the size and fish you keep you may require daily water changes and if you miss even one water change it could be deadly.

Hardy fish like white cloud minnows may be able to handle the water parameter swings.

“Hardy fish is any fish which is easy to maintain in home aquaria due to their ability to adapt to a wide range of water parameters.” (Wikipedia)

Why Small fish?

I think this is pretty self-explanatory but small fish require less space and water.

Some nano species of fish like Scarlet Badis may be good options for bowls.

Why Cold Water fish?

In most cases, it will be difficult to have a bowl with equipment like heaters, filters, and lights.

If you don’t have a heater then you don’t want to have fish that requires a steady temperature of 78F like a Betta Fish if you can’t heat the water.

What If I Want To Keep Fish In A Bowl? bowl?

If you really want to use a bowl then try to provide these minimum requirements:

  • Heat
  • Filtration
  • Light
  • Live Plants

I’ve seen bowls as large as 10 gallons and you can find some small heaters like this one on Amazon that can be used in a bowl.

So there can be exceptions to the rule.

Also, a small sponge filter could also be used along with some live plants.

The sponge filter will provide a place for the good beneficial bacteria to grow, will help aerate & move the water around and the live plants will help remove some of the nitrates in your water.

Here are a few bowl setups that would be great to copy.

Betta Fish Planted Bowl

Here is an example of a great little Betta bowl set up from Foo The Flowerhorn. This bowl is around 7.5 gallons, 6 months old and doesn’t use any filter, ferts or C02.

Betta Fish Planted Bowl: Video

Guppy Planted Bowl

Here is a great planted 3-gallon bowl set up with a few guppies from Heisenberg with a few plants like Java fern, Java moss, Christmas moss for a really stunning example of what can be done.

Guppy Planted Bowl Video

So Which Fish Can Live In A Bowl?

Now that we’ve covered off the key things to keep in mind when keeping fish in a bowl, it’s time to get to the fish.

Below are a few types of fish that are best suited to living in a large bowl:

1. Betta fish (Use a heater)

2. Guppies.

3. White Cloud Minnows.

4. Blind Cave Tetras.

5. Salt and Pepper Corydoras.

6. Zebra Danios.

To get a few more ideas for smaller bowls that are 2.5 gallons or less.

You can read my post on the Smallest Freshwater Aquarium Fish that can be kept in nano tanks.

Here are just a few:

7. Ember Tetra

8. Pea Pufferfish

9. Six-ray Corydoras

10. Scarlet Badis

What Is the Best Fish To Keep In A Fish Bowl?

If I had to choose one small fish for a bowl I’d go with something like the white cloud minnow.

For the following reasons:

They are small but very active fish that have little red fins and like to swim in schools.

They are super and I mean SUPER HARDY fish that can sustain pretty large swings in water quality.

So if you don’t use a filter or forget to clean the bowl they may be able to live through the hell.

They also thrive in cold water so if you can’t use a heater they will be fine, but they also do just fine in a bowl with a heater so you can go either way.

Lastly, they are very friendly and peaceful fish so if you want to add a few snails or shrimp to the mix they won’t attack the little guys.

You could keep 3-5 white cloud minnows In a 4-gallon bowl with some live plants and it would look awesome.

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