20 Litre Tank What Fish Are Best | My Aquarium Club

I have six big fish in a 190 litre tank … they behave perfectly with no cause for concern except for one who’s always been a cause for concern … overall their behaviour is ok … what is worrying is the state of their fins with pink streaks appearing and the like. Anyway after reading a lot I realise they’re overcrowded and need a bigger tank. I made the mistake of miscalculating a new tank I bought which is only slightly bigger than their previous tank which is around 187 litres. I now realise I will have to separate them and have three in each tank. My problem is that I’ve also read that fish can miss their friends!! How do I determine who is best to go with who. Also is it helpful to have the tanks nearby so they can see each other or will this cause them more stress? I believe I have two females and four males from their behaviour and the white spots that appear on a male goldfish fins. I have decided to have one female and two males together … even so it’s troubling me who should go with who and where their tanks should be positioned.

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goldfish in my 130Gallon fish tank , they are around 5-7 inches now

Nov 19, 2007 - I was going to get a 7 litre fish tank to keep about 5 gold fish in, do u think this is cruel I have six big fish in a 190 litre tank … they behave perfectly with no cause for concern except for one who’s always been a cause for concern … overall their behaviour is ok … what is worrying is the state of their fins with pink streaks appearing and the like. Anyway after reading a lot I realise they’re overcrowded and need a bigger tank. I made the mistake of miscalculating a new tank I bought which is only slightly bigger than their previous tank which is around 187 litres. I now realise I will have to separate them and have three in each tank. My problem is that I’ve also read that fish can miss their friends!! How do I determine who is best to go with who. Also is it helpful to have the tanks nearby so they can see each other or will this cause them more stress? I believe I have two females and four males from their behaviour and the white spots that appear on a male goldfish fins. I have decided to have one female and two males together … even so it’s troubling me who should go with who and where their tanks should be positioned.

7 Litre Fish Bowl | Global Sources

I don't have any experience with ghost shrimp, but I do have cherry shrimps. And it seems like they are pretty much alike in behaviour, size, care taking, ...

Shrimp are a lot different than fish, their bio footprint is a lot lower, they are a lot smaller,... So I would not use such calculators to see how many you can have. They usually just take the size of the fish and do some calculations (which is not a good way anyway).

seems to have some good information about ghost shrimp and it mentions 10 shrimp/gallon.
But I agree with Karl's comment above: it doesn't really matter. But make sure you have more shrimp than tetra's.
Actually I would say: the more shrimp the better.

I've got a 30 litre (8 gallon) tank with only cherry shrimp. I started with about 20 shrimp I believe (1.5 year ago). Now I probably have close to 100. But I don't have the feeling it is overstocked. They're always spread out over the tank or swimming around. It's only when I feed them that they all come to the same place and you actually see how many there are.

I also have a 180 litres (47 gallon) tank with some corrydoras, tetra's and a betta in which I added about 15 shrimp a couple of months ago.
I have no idea how many shrimp I have now (lot's of hiding places), but I always have about 10 in sight. So I'm sure those 15 shrimp were enough to keep the population steady (and growing).

So for you, it would start with at least 10-15 shrimp and see how it goes. And I would not worry too much about having to do population control. More baby shrimp will also mean that more will be eaten by the tetra's anyway (becasue they will be easier to spot by them).

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