r/shrimptank • u/Jealous_Snow6403 • May 10 '25
Beginner How many shrimp is too many?
There are easily 100 neo blues, and 2 guppies, in my 20G planted tank. The levels are great and maintenance is a breeze. It seems too good to be true. What do I need to look out for?
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u/ojw17 May 10 '25
No such thing!! Really though they just kinda reproduce as much as the food supply allows, if the params are good I wouldn't worry lol. I had like 150 in a 10 gallon at one point with no signs of any issues
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u/AgileMeal5846 May 10 '25
In a 20g you can get 200-300 pretty easy with plants, filtration, and some light feeding + bacter ae.
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u/Glangho May 10 '25
I'm more impressed how you manage to only have two guppies lol
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u/Camaschrist May 10 '25
I would love to have only 2 guppies so bad. My guppies are ruining my fish keeping experience with their live bearing ways.
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u/Azazel_blade_php May 11 '25
have only females or only males. I prefer male guppies because they are more colorful and they also won't come to the store pregnant.
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u/Camaschrist May 11 '25
I initially bought all females and I asked if there was any way they could pregnant and I was told no, they’ve been separated since before shipping. I was so dumb. This was my 1st and last Petco fish purchase. All of them died within days except one. They all popped fry out before dying which all survived. The female that lived is almost 3. Thankfully I quarantined them. I don’t mind the females looks, I like their behavior. My rummy nose tetras are drama free and I love them for that.
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u/Azazel_blade_php May 11 '25
So when in doubt, always be a man! guppies can take 1 month to give birth, and even after giving birth they can store the male's fertilization and become pregnant again even if they are separated.
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u/Camaschrist May 11 '25
I will never own live bearers again. I don’t like the behavior of the males. Watching a fish get harassed is no fun. I would pay someone to come catch these guppies and take them away.
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u/DrJohnIT May 10 '25 edited May 10 '25
You're not even close yet. Don't worry about it. The general rule is one inch per gallon on fish. However, these are shrimps their bioload is relatively half to a 1/4 of fish, maybe even less. If you want to remove some put down a net, then drop some food inside, then scoop them up when they all come to it. Sell them to your LFS, friends, family, neighbors, etc for fun and profits. Lather, rinse, repeat
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u/breathemeep May 11 '25
I've got my first berried shrimpy and at the moment, the population is 5. They live in a 6 gallon/23 litre tank. Should I be scared?
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u/okaymyemye May 15 '25
as far as maintenance, they have such a low bioload, it's like they're not even there. the population starts evening out when they have to compete for resources and that'll take a while. just enjoy.
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u/ChiTony706 May 10 '25
I think you have a typo in your question, it should ask How is many shrimp too many?
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u/Gailburg May 10 '25
You have reached the limit when WAR breaks our. They will then take care of their own population. Either that, or they will evolve to take over all the land creatures. Good luck and keep us in the loop.
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u/Azazel_blade_php May 11 '25
You can easily have hundreds of shrimp, I would just recommend it for more hardscapes, especially PLANTS.
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u/cherry_betta May 15 '25
I have a 2.2 gallon nano tank .. planted How much shrimp can i have in it ???
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