How Many Shrimp In A 30 Litre Tank?

I have owned the Biorb 30 with extra heater for about 6 years, and when we lost all of our fish, it has been sitting empty for the past 12 months. I now realize that most fish cannot live in it, so the recommendation is to keep shrimp instead, which is what I intend to do. I was merely curious as to how many cherry shrimp and neon tetras I could fit into a biorb of this size.

You’re right; fish should not be served in these bowls (even a small shoal of neons – classed as 6 fish, need a min of 60 litres and a rectangular tank for adequate gaseous exchange).

When it comes to shrimp with low bioload, I’d recommend starting with 10 or 12 because, in the absence of predators, they will swiftly reproduce and grow in number.

Many thanks for your prompt response. Purple – I suspected it might be the case, but I couldn’t locate solid proof:)

How many shrimp can I have in total, and what do people often do with the young if they are being swamped, is my next question (hopefully not too foolish).

The beautiful thing about shrimp is that they have such dense wild populations that, as long as the water quality is good, stocking a 30L with, say, 50 shrimp wouldn’t harm them in the slightest. As changes in the water won’t have as much of an impact on the greater amounts of water, it is simpler to maintain the water parameters (such as temperature and ammonia level) in larger tanks.

Shrimp are among the most sensitive animals you can purchase for an aquarium, so once you’ve set up your tank, I recommend keeping about 3 cherry shrimp inside for a week to see how they fare.

Whether everything is in order, you may either buy more or wait to see if they breed; if they do, it is a terrific indication of high-quality water.

So for the tank housing cherry shrimp: Temperature: 22 to 27 Celsius Nitrite – 0 Ammonia – 0 pH: 6.5 to 7.5 is typically the ideal range, although some people report they’ve been kept in conditions as low as 6.0 and as high as 8.0.

A significant number of live plants are advised since they aid to reduce ammonia and nitrite levels.

However, I don’t have much knowledge of the biorb tank you have, so I’m not sure how effective the filtering would be there.

Can I Put a Lot of Shrimp in My Tank?

One of the most frequently asked questions in the hobby is arguably How many shrimp can I have in my tank? Although the query is rather straightforward, there are a few considerations to take into account when determining acceptable stocking levels. I’ll discuss the scientific technique rather than utilizing a rule of thumb approach.

In terms of growth performance, the study found that keeping 5–10 dwarf shrimp per gallon (about 4 liters) is the ideal shrimp density. The trials’ findings demonstrated that the shrimp’s final weight and size were decreased as shrimp density increased.

This article will provide comprehensive answers to all of your queries if you became inquisitive and wanted to learn more about shrimp density.

Per litre of water, how many red cherry shrimp are there?

Just curious as to how many shrimp should I put in the tank per liter of water.

Do you mean to say that the size of your tank is simply a litter? Because if that’s the case, your tank, which holds just 0.256 gallons, can only accommodate a small number of juveniles, whereas an adult requires at least a 2 gallon tank and numerous adults at least a 5 gallon tank.

Wow, thanks. That’s a little 50 gal with 30 shrimps, yet it seems quite bare when I picture it.

Or you might simply purchase a number at a time at various periods until you have a large number. But the expense will still be quite high.

That is a great offer, by the way. A few hundred Ghost Shrimp would cost more than $100 on eBay, and occasionally up to $200 or $300.

In actuality, 2-3 per liter or 10 per gallon can easily be handled in a mature tank with lots of surface area. Over 100 shrimp might be comfortably housed in a 10 gallon species-only shrimp tank.

I realize this is an old topic, but shrimp breed and produce young; buy a couple and let nature take care of the rest. If you purchase 100 shrimp and they all finally perish on you with young, perhaps conduct a Google search to find out what went wrong or seek assistance from your neighborhood aquarium club. There’s no shame in realizing you can correct errors, but if you continue to kill living things out of disregard because you believe you don’t need to learn anything, that’s BAD on you.

False Did

Hello, Lindy I understand that there can never be an exact science, but do you have a ballpark estimate of how many shrimp per liter you would consider “overcrowded”?

This is one of the questions posed to the contributors to “Breeders and Keepers,” Volume 1, where two breeders (Luck and Deppler) discuss how the social structure of shrimp only develops with larger colonies, whereas Pohler and Silva discuss how understocking is best, citing a ratio of 1 shrimp per 1-3 litres. According to Silva, difficulties usually begin in a 60 l tank with 200 shrimp, and 50 would be perfect.


Greetings to all. I sincerely hope that someone can assist me because, as I explained in my thread titled “Males Can’t Catch Females,” I used to have a serious issue with my Cherries never becoming pregnant, but now I’m having the exact opposite issue as a result of all the fantastic advise I received! In a 20 liter (about 5 US gallon?) tank, I only had approximately 10 shrimp. I’ve now given birth to two sets of babies totaling roughly 15 each. The first batch is almost two months old, and I anticipate that they will begin reproducing on their own in a month or so. So, I want to know how many shrimp can live peacefully in a tank this size. Do they automatically stop reproducing if they are getting too crowded and “control” themselves or do they just carry on regardless? I’ve tried online but haven’t been able to find any advice (as you can with fish stocking). I do a 20% PWC every week and a gravel vac every two weeks. I have a lot of plants and other items in the tank. Any assistance, suggestions, or direction would be highly valued. I’m grateful.

How many liters are needed for shrimp?

Many aquarists want to know how many dwarf shrimp they can keep in 5, 10, or 20-gallon tanks, as I’ve already mentioned.

Fortunately, scientists provided a solution to this topic a few years ago. They conducted tests to examine the effects of density on the size, survival, and reproduction rate of dwarf shrimp (Neocaridina sp.).

Water characteristics and feeding rates were the same for all shrimp groups to rule out any variances. Researchers categorized dwarf shrimp into three primary groups:

  • shrimp in little clusters, 2.5 to a liter (about 10 shrimp per gallon).
  • shrimp in medium groupings, 5 to a liter (about 20 shrimp per gallon).
  • Shrimp in large groupings, 10 to a liter (about 40 shrimp per gallon).

These were the findings after 90 days of the experiments:

  • 15% more shrimp from small density groups than from medium density groups weighed.
  • Shrimp from medium-density groups typically weighed 30–35% more than shrimp from large-density groups.

By the time the trial was over, it was clear that shrimp in tiny density groups (10 shrimp per gallon) grew faster and weighed more.

Can I fit all the fish I want in a 30 liter tank?

If a heater was installed, a number of small, tropical fish may be kept in a BiOrb. Choose six neon tetras, five guppies, and several small, algae-eating catfish like Otocinclus if the water is heated to a constant 24C.

A community of real nano species like Boraras, Danio margaritatus, or Danio erythromicron would be fantastic if you want to venture off-piste. Even tiny Sparkling gourami species and Corydoras catfish species like Corydoras hastatus or pygmaeus exist. In a 30 liter BiOrb, you could keep 15 fish the size of a Zebra Danio or a colony of 20 tiny nano fish with a mature tank, adequate water quality, and regular maintenance.

In a 30 litre tank, how many goldfish can you fit?

We can now answer the question, “How many goldfish can you keep in a 30-35 gallon tank?” because we know how much water each goldfish needs. The answer will depend on variables like the type of goldfish in issue, but in general, you can keep 3–4 goldfish in 30-35 gallons of water without any problems.

How many goldfish you can comfortably keep in a 30-35 gallon tank depends on a few different things. Some of these will be discussed below.

What proportion of shrimp should I add to my aquarium?

Can I put a certain number of shrimp in my aquarium? Per one gallon of water, 10 dwarf shrimp are allowed. For instance: Up to 100 dwarf shrimp COULD live in a 10 gallon tank. However, 5 shrimp per 1 gallon of water could be a fantastic place to start.

How many tetras can I fit in a tank that is 30 gallons?

This means that in order to ensure that adult fish have enough room, 1 gallon must be added for every inch of the fish.

For instance, Neon Tetras can fit 25 of them in a 30 gallon tank because they grow to a maximum length of 1.2 inches.

This fish stocking calculation method should only be used as a ballpark figure. Additionally, think about the fish’s behavior and degree of activity. A fish that is more active will require more room than a fish that is less active.

The quantity of decor should also be taken into account. Since anything more than this can reduce the amount of swimming area inside the tank, you should aim for décor coverage of around 50%.

Can shrimp clean my aquarium?

We were astonished by how quickly our newest species of tropical shrimp were snapped up after being released. We decided to write a blog post for all you fish keepers out there on how to care for shrimp after the success of our first shipment of shrimp. If you want to add something novel and entertaining to your tropical fish aquarium, freshwater shrimp are fantastic. Shrimp are fantastic for keeping your tank free of algae and food waste, and they are interesting to watch even though keeping them is completely different from keeping tropical fish. These friendly animals make for lively environments and are quite simple to take care of.

Having too many shrimp is possible.

Some people can only tolerate a certain amount of shrimp. However, consuming too many shrimp can result in allergic reactions that include hives, facial and body swelling, breathing difficulties, diarrhea, and even fainting.

Can shrimp survive without a filter in a tank?

Should shrimp be filtered? It is generally advised that you cycle your shrimp tank completely before adding any animals because shrimp are extremely sensitive to ammonia and nitrite. This simply entails operating the filter long enough to establish a sufficient population of helpful bacteria that will maintain acceptable levels of ammonia and nitrite.

To what stage of my aquarium should I add shrimp?

Shrimp must be added to your tank at the appropriate time. But when should you include your shrimp? Your tank needs to be correctly set up to begin with!

You should always have your new tank with you. Additionally, you ought to have all necessary aquarium supplies on hand. At this time, you should buy your plants, decorations, substrate, and tank accessories.

Java moss is one of the simplest ways to help your shrimp feel at home. similar to the image below. Java moss is inexpensive and available on Amazon. You won’t be let down, so check it out here!

If you’re starting a planted aquarium, you can also buy lighting and other supplies. You should really have everything prepared so that you can position your tank and initiate the nitrogen cycle. The water in your aquarium must be cycled before shrimp or other animals may be added.

A tank can be started without the nitrogen cycle. However, doing so can result in killing your shrimp. Therefore, I strongly advise waiting to add your shrimp until after your tank has cycled.

Once your tank is decorated, equipped with your plants, and filled with tank supplies, you may begin the nitrogen cycle by adding water to the tank. Then, after this process is finished, add your shrimp!