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18

A lot of pet stores - particularly those dedicated to aquariums - will happily take unwanted fish off your hands. So if that ends up the case, and you can't put them in another tank, call around and see if any stores will take them. Often the fish just end up getting resold by the store. I've heard some stores may even give you store credit towards the ...


11

Neon tetras will school together irrespective to the order of introduction. The new fishes may hide and not eat for the first few days, but eventually even you wont be able to differentiate them. While not necessary, try to get same sized fishes as the existing ones. Acclimate them properly. Turn the lights off after releasing them into you tank. My Neons ...


9

In my experience, neons will school at all times. It doesn't matter if they came from the same batch or not. When it comes to neons, the more, the better. Even tetras of different breeds (as long as they physically look similar) will school together if there aren't enough of the same breed.


8

Fish have cells called chromatophores that produce the pigments that give coloration or reflect light. The colour of a fish is determined in part by which pigments are in the cells (there are several colours), how many pigment molecules there are, and whether the pigment is clustered inside the cell or is distributed throughout the cytoplasm. Another thing ...


8

Many schooling tetras squabble quite a bit among themselves: the attack sounds more like a fairly typical 'charge and intimidate' move rather than real aggression, and it might not even be connected to the swimming behavior. Unless you're seeing actual injury result from it (most likely along the fins, scales, or eyes), it's not a big problem. You'll ...


7

Firstly, I'll go for my old refrain "consistency is key". It's better to have consistent water parameters than changing them continually to 'chase the perfect conditions'. Firstly, your nitrite should be 0 if your tank is correctly cycled. Secondly, you haven't got a reading for ammonia there (which is one of the problems with the test strips). Ammonia, as ...


6

Males do tend to be more slender and females a bit rounder, but honestly, with a large enough school, you'll probably end up with a mix of both sexes anyway. I like a school of at least a dozen. The fish seem to be more at ease in a larger group, and with more fish, you have a better chance of getting a mix of males and females.


5

Neon tetras will indeed eat baby shrimp. So they can be used for population control. But keep in mind that you do have to try to keep some of the babies alive. Otherwise you might end up without any shrimp after a while. From your other post, it seems like your tank won't have many hiding places for the shrimp. So you might want to add a few real plants and ...


5

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 ...


4

To answer my own question then: I added three new tetras, identical in colouring to the original three tetras. The additions were smaller than the existing ones. Within two days, all three of the new additions were dead. I am not sure which of the other community fish (guppies, albino catfish, angel fish) were the main culprits. I did see the original ...


4

Biggest concern is introducing a disease to your tank. Especially if you have a decent size group of them make absolutely sure the new ones aren't showing signs of ich or other diseases if you cannot quarantine them.


4

This question is a bit like asking "Why does Sally like Pizza" and thus I'm a bit reluctant to answer it as all animals have their own personalities. Nevertheless, it's likely that your fish is stressed, or just a psychopath. You say your school size is 8, while usually a minimum of 6 is recommended for schooling fish, after living in a large school at the ...


3

Since the shrimp multiply fast (because they lay hundreds of eggs, of which many do survive to adulthood) I'd start with a small number, maybe 5 males and 5 females. And later, you may have to do population control.


3

I did this when some of my neons died, I would recommend adding a few of the new ones as they can stay together until they familiarise themselves with the surroundings, in my personal experience after a month they were all schooled together no problem. I would suggest getting the same species of tetra.


2

I presume you've already sorted this issue out. However, I shall give an alternative for other's who have such issues. First of all having a group of Bettas is a bad bad idea. Specially 2 males and 4 females is even more bad. Whether there are tetras or not the males with fight each other constantly. I've done such experiments in a much larger tank ( a ...


2

The answer is pretty simple: buy more tetras. Tetras like to live in shoal. I would say something around 12 for your tank size. They will get more calm with more fish because they will lose territory(I don't know the exactly theory, but I had many tetras and they were fine in shoal). Also it will look beautiful because they will swim together. They have ...


2

The answer from Karl is surely a good one. But I think there might be another reason too. White skirt tetra are a school fish. The recommendation is to keep minimum 5 together. If you really bought "a tetra" you simply need more. I don't want to recommend buying more directly since we are missing information on your tank overall. 5 fish and a 20 gallon tank ...


2

Corydoras need good hiding places (Sterba 1990). The fact that the Cory is swimming fast might indicate that they're missing/not sufficient. Increasing hiding places by adding fast growing plants might solve the issue. If not, this behaviour justifies to separate Tetra and Corydoras into different aquariums. I'd move the Tetra out. STERBA, Günther. ...


2

Cleaning gravel can be tricky, so this is actually a good question. In short- you can leave the fish in the tank- just watch what you put in. But as far as way to clean gravel goes, here are some of my answers: This best approach is, as mentioned before, to look at your tank as an ecosystem. In the natural environment there would be loads of other ...


2

This tetra is not feeling good. Likely because it doesn't have a group to school with. I'm assuming your tetras are neon tetras, but it's the same with some other tetras like cardinals. Neon tetras are schooling fish, they need to be in a group to feel comfortable, the more the better. For best results you should have at least 12. For minimal requirements ...


1

The way to do this is to setup your new tank, you do not need to move the old gravel, but you need to move some of the decor or filter media to your new tank; this is to seed your new tank with bacteria. Do not move your fish to the new tank until it is properly cycled. Using some of the water from your old tank is not very helpful, the water contains very ...


1

I read the answer comments to your post before writing this, I understand the first answer has a link but what you must understand is that 10 tetras is a lot for a tank of your size. 3 is too small so I'd suggest 5. When it comes to schools you'll want to do them in odd numbers. Second, you don't need to wait 30 days to cycle your tank unless you aren't ...


1

IF it's only going to be the fish and the shrimp and some decorations I would say keep the count around 5-10. The only issue I see is if you get more you're going to have to have stuff for them to feed on, in my experience they eat alot of the pieces of the uneaten stuff that floats to the bottom, or any other plant matter, etc, I'd say if you added some ...


1

If you have a big tank than you can have both the species because they could fight over space. Do remember that introduce new species in a group of minimum 4 (Personal experience) so that they are not bullied by other fish.


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