How many fish can I put in a 30 litre tank?

With a mature tank, good water quality and regular maintenance you could keep a community of 20 tiny nano fish in a 30 litre BiOrb, or 15 fish the size of a Zebra danio.

How much substrate do I need for a 30 litre tank?

How much gravel do I need for my fish tank? Aquarium sand and gravel vary in weight and density, but if you aim for a two to three-inch layer, an average-sized 180 litre tropical aquarium will need about 25 kilos. A small, 30-litre nano tank may only need 5 kilos.

How many fish can I put in a 30 gallon tank?

Inch-Per-Gallon Rules This rule has many variations, but the most common version holds that you should stock 1 inch per 2-5 gallons of water. This means a 30-gallon tank could hold 6 to 15 1-inch fish, or 2 to 4 3-inch fish.

What should aquarium stocking level be?

The most widely known rule for stocking a tank is the one inch of fish per one or two gallons of water rule. While this type of calculation works as a rough estimate, it leaves plenty of room for error.

How many mollies are in a 30L tank?

Depending on the species, you may add up to four mollies to the tank. For Sailfins and other larger mollies, however, you’ll need to arrange a 30-gallon aquarium. To live comfortably, each extra molly will require about 3 additional gallons.

How many fish can you have in a 34 litre tank?

For tropical fish – allow 1 cm of adult-size fish (excluding fins and tail) for each litre of water.

How much substrate do I need for a 30 gallon tank?

Gravel for 30-gallon fish tank The rule of thumb for buying gravel for your aquarium is 1 pound of regular aquarium gravel per 1 gallon of water. That means you should plan on a minimum of 30 pounds for a 30-gallon tank for each 1.25 inches of substrate.

How do I calculate aquarium soil?

You need to measure your tank’s width and length in cm, then multiply with the layer thickness and divide by 1000. For example, provided that you want a 5 cm soil layer: 60 cm (width) x 90 cm (length) x 5 cm (layer) /1000 = 27 Litres of soil needed.

What fish can live together in a 30 gallon tank?

Neon Tetras, Black Neon Tetras and Lemon Tetras are just some of the desirable species which you can keep in a 30 gallon aquarium. They make colorful additions to planted aquariums. Another small species loved by aquarists are Rasboras. They are a peaceful community fish that are very common in tanks under 30 gallons.

How many mollies can be in a 30 gallon tank?

How do you calculate fish stock?

A general rule of thumb is to allow one inch of fish per square foot of surface area. To calculate based on your pond’s volume, allow for one inch of fish for every 13 gallons of water. Waterfalls and fountains may allow for a more generous stock load, as these features oxygenate the water.

How many fish can you have in a 40 litre tank?

An aquarium this size will hold around 15 tropical or 7 cold water fish of 3cm length at adulthood.