Pets Stack Exchange
Pets Stack Exchange

Questions tagged [fish]

Fish kept as pets in a natural or artificial enclosure.

Fish are frequently kept as pets in tanks, fish bowls, aquariums or ponds. Relevant topics can include , , , , of the environment, and questions concerning interactions between specific species of fish and other creatures in their environment (e.g. crabs, eels, plants, etc.). Fish are frequently categorized as or .

Related tags: , , .

615 questions
25
votes
4 answers

Are there health risks to leaving a dead fish in the aquarium?

Sometimes one fish dies, without any apparent disease. In previous aquariums I would always remove them as fast as I could. Now my aquarium is a bit bigger, and I have some laziness to remove those bodies: they are too deep, or in the back, or…
woliveirajr
  • 4,044
  • 4
  • 31
  • 53
23
votes
7 answers

Cooling a goldfish tank during summer

During the peak of last summer we had several goldfish that died after several days of hot weather and I suspect it was related. According to the Goldfish article on Wikipedia: Extremely high temperatures (over 30°C (86°F) can also harm…
PeterJ
  • 1,324
  • 5
  • 15
  • 34
21
votes
2 answers

Do fish need a dark environment at night?

Is it bad if I accidentally leave the lights lit on a fish tank overnight? Or do the fish not care whether it is light or dark?
Timtech
  • 3,271
  • 6
  • 25
  • 48
21
votes
2 answers

Do fish get bored, and if so, how can fish boredom be identified?

There are a lot of opinions on this topic, with a lot of different views. We know from Mythbusters that even goldfish have memories. Is there any reliable science on fish boredom? For common house pets, like cats, dogs, and rabbits, a bored pet…
James Jenkins
  • 29,385
  • 40
  • 135
  • 246
21
votes
4 answers

Is it okay to keep my fighter fish all by itself in a bowl?

I got a fighter fish in a bowl today. Only one fighter is put in a bowl. Now I am wondering if it will get lonely. How will it mate? Am I depriving it of a companion?
Supriya
  • 219
  • 2
  • 3
20
votes
4 answers

What is the maximum proportion of fish per liter in an aquarium?

How many fish can I have per liter in my aquarium, or how much water should I have for each fish? For specimens like Black tetra and Neon, that don´t require that much space and can coexist with other fish.
woliveirajr
  • 4,044
  • 4
  • 31
  • 53
20
votes
2 answers

Why don't fish grow to their full size in a small tank?

I have heard that when a fish is kept in an aquarium that is too small for the fish to grow to its full size, it will only grow to a portion of its possible size and its lifespan will be shorter than it would normally be. If this is true, why does…
Jacob B
  • 657
  • 1
  • 10
  • 30
20
votes
2 answers

What's the least painful way to euthanize a fish?

My aquarium fish is sick and I don't know the least painful way of putting it down. How should I kill it so that it doesn't suffer?
Raystafarian
  • 1,116
  • 1
  • 8
  • 18
20
votes
2 answers

Where did my danio fish mysteriously disappear to?

I have 8 white skirt tetras, 8 albino cory cats, and had 8 danios. Now I have 7 danios. One mysteriously disappeared. I am very doubtful it is hiding because my danios don't do that; all they do is swim at the surface. It is impossible for the fish…
Don Larynx
  • 1,757
  • 6
  • 18
  • 34
18
votes
2 answers

What, exactly, is "ich"?

I've started seeing tiny white spots appear on one of my fish. After asking a friend, he told me it was something called "ich". What is ich and how do I get rid of it?
Spidercat
  • 15,602
  • 20
  • 74
  • 155
18
votes
8 answers

Adding neon tetras to an existing school - Any concerns?

I have three neon tetras and I'd like to add some more. My reading on the subject gives me different advice on what is likely to happen. One outcome is the two sets of neons will not school together, the other outcome is that they will school…
Nicholas
  • 591
  • 2
  • 5
  • 11
17
votes
5 answers

How should I dispose of a dead fish's body?

One of my neighbor's fish coincidentally died during the time I was caring for them. I immediately removed it from the fish tank, but I didn't know what to do with it. Flushing a pet down the toilet seems rude, and it might block the pipes. My mom…
Ankit Sharma
  • 2,107
  • 1
  • 16
  • 40
17
votes
2 answers

How to determine the amount of fish that can live in a pond?

How many fish can live in a pond? As ponds are normally not the natural habitat of the fish that live in them (ie: goldfish, kois and sturgeons in my case), how do I determine how much is too much or what can be considered a species-appropriate…
Baarn
  • 3,026
  • 1
  • 22
  • 41
17
votes
4 answers

Is it true that goldfish growth is limited by container size?

As I grew up, I was taught that a goldfish will only grow to a certain point dependent upon the size of their container and how many fish are in the container; all the fish within the same container would be limited by this rule. Is it true that the…
user6796
16
votes
4 answers

How can I protect a fish pond during the winter?

We have a pond with several fish in it (koi, sturgeon, goldfish). We live in a temperate area where the pond is covered by a layer of ice for several weeks during winter. How can I ensure the fish survive this period? Do I need to keep an area…
Baarn
  • 3,026
  • 1
  • 22
  • 41
1
2 3
…
40 41