Skip to main content
39 votes

My fish are disappearing :(

The most reasonable explanation is that it died and was eaten by the other fish / snails. Note that some snails are carnivorous. Many fish are cannibalistic if the opportunity arises. Some leftovers ...
virolino's user avatar
  • 2,627
35 votes
Accepted

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

Fish excrete hormones in their waste. In a confined space like an aquarium, these hormones build up and act as growth inhibitors, this is basically an evolutionary mechanism, to prevent fish from ...
Jestep's user avatar
  • 3,093
25 votes

Do fish make noises in order to get attention?

Goldfish do not make noise to get attention but they will come to the surface of the water when you walk up to the tank. Goldfish and other fish will learn that when you come it means food is on its ...
trond hansen's user avatar
  • 19.6k
18 votes

How can I help my betta, who has a white-ish sore on his side, is laying at the bottom of the tank, and isn't eating?

It is most important that a betta fish have the right environment. If the environment is right, it's easier to treat any illnesses the fish may develop. Your fish needs at least 5 gallons (19 L) (...
Gwendolyn's user avatar
  • 2,723
17 votes

Goldfish unresponsive, what should I do?

Your goldfish has ammonia poisoning. First aid for this is to change 50% of the water at once. You need to change 20% of the water on day 2 and day 3, and from day 4 you need to change 10% water ...
trond hansen's user avatar
  • 19.6k
11 votes
Accepted

Dried goldfish became alive after re-introducing into water

Goldfish can live for up to three hours out of water. It also depends on where your goldfish lands. If they landed somewhere moist or in the puddle of water they spilled out of their bowel, they can ...
user11111111111's user avatar
9 votes

Is my betta dying/sick or just sleeping?

Contrary to what the pet stores would have you believe, every single betta fish needs more care than a small bowl. They make you think you're really upping their lifestyle by moving them from a small ...
Dalton's user avatar
  • 4,484
9 votes
Accepted

Why did my Guppies not grow for 8 months?

There are a couple of issues that I can see here that may be limiting how your fish grow. 1. Temperature You didn't mention having a heater for the tank and I cannot see one in the picture that you ...
Henders's user avatar
  • 5,125
9 votes

One discus fish bullying the other discus

I have to strongly suggest taking these fish back to the store. I've kept discus for many years and bred discus in the past for roughly a decade. I can say with almost complete certainty that these ...
Jestep's user avatar
  • 3,093
9 votes

Where do you keep aquarium plants until you plant them in an aquarium?

Not only can you put your plants in another container, but you should. It is always a good idea to quarantine plants in a separate container for a few weeks before adding them to your tank, otherwise ...
James Yarrow's user avatar
8 votes

What animal can be kept in a tank just under 3 gallons?

It is very hard to get a small tank to be in biological balance and to keep the water quality good, so I suggest you use this tank only for treating your fish with medication. This can be helpful if ...
trond hansen's user avatar
  • 19.6k
8 votes
Accepted

Fish swimming with mouth always touching the water surface

Fish swimming with their mouth constantly glued to water surface is a sign that they are gasping for breath. However, the reason for them being short for breath usually isn't the low oxygen ...
lila's user avatar
  • 195
7 votes

Gourami breathing at water's surface

Don't panic! This is entirely normal behaviour for Gouramis (within moderation). Gouramis are part of a group of fish called 'Labyrinth Fish' (Sometimes also known as 'Anabantoids'). These fish have a ...
Henders's user avatar
  • 5,125
7 votes

Can I put newborn platies with neon tetras?

Neon tetras will attempt to eat these. I've kept neon tetras with shrimp and they would often pursue the baby shrimp. Luckily for the shrimp, they're pretty fast and hard to see so the fish would ...
Henders's user avatar
  • 5,125
7 votes

Want to know solution of betta fish problem

You and your fish are a victim of the pet shop's lack of knowledge about fish and fish keeping. Most likely your fish has ammonia poisoning as a result of not having cycled the tank properly. To cycle ...
trond hansen's user avatar
  • 19.6k
7 votes
Accepted

Fish needs light in its tank or not

It's important to turn the lights OFF at night, so fishes can sleep. During the day, light could be open for 6, 8 or 10 hours. Lights are important for you to look at your beautiful aquarium, but the ...
Manuki's user avatar
  • 953
6 votes

Can a rabbit be safe drinking water that a turtle and fish live in?

Turtles carry salmonella as well as other bacteria that can be harmful to your rabbit, both animals carry very different gut flora. Rabbits are so so sensitive with their GI tract, that's like the #...
Rebecca RVT's user avatar
  • 12.6k
6 votes
Accepted

How to test if fish tank will break and flood my house?

This link here outline pretty well how to check for bad sign around an used tank and also outline how to prepare the tank for your use. I will resume briefly what to check but I leave the link so you ...
Rémi's user avatar
  • 1,027
6 votes

Help increase Betta Fish lifespan beyond 1.5 Weeks

Fish are a complicated thing so I will go over specifics for betta fish. Aquarium should be 5 gallons minimum. Filter should contain activated carbon (absorbs contaminants), biomax (helps beneficial ...
Rebecca RVT's user avatar
  • 12.6k
6 votes

Will cooking rocks and branches in the oven make them safe for aquarium fish?

Ensuring that the rocks and wood that you put into your aquarium is definitely an important step to take before adding anything. I've seen many, many horror stories of people adding wood/rocks to ...
Henders's user avatar
  • 5,125
6 votes

Can I add soda water to my tank to supply CO₂ for my plants?

Soda water uses carbonic acid to produce CO2 so in theory it should work, but it is not that easy: carbonic acid is as the name says an acid, and any type of acid will lower the water's pH too fast ...
trond hansen's user avatar
  • 19.6k
6 votes

Can snails and betta fish cohabitate?

This article has several good suggestions for potential betta tankmates. It also mentions: Please remember that the ideas below are suggestions. Your betta may get along just fine with all of these ...
Bruce Kirkpatrick's user avatar
6 votes

Can you use super glue on outside of fish tank?

Common super glue is actually harmless to use on an aquarium, but it might not yield the desired result. This article describes why super glue is safe: Super glue is safe for use in fish tanks ...
Elmy's user avatar
  • 33k
6 votes

What could I use to clean limescale off of tank glass?

To clean aquarium glass you can use: A kitchen scrub made of plastic, the ones made for cleaning pots and pans. A paint scraper, you can get this in your local hardware store, be sure you do not ...
trond hansen's user avatar
  • 19.6k
5 votes

Is my guppy pregnant? How could I tell whether a guppy is pregnant?

Yes definitely pregnant. As Dalton says, you may want a birthing chamber to put her into. From experience I would also look into sexing guppies if you want to keep your tank population in check. ...
AvieRose's user avatar
  • 151
5 votes

Is an UV lamp dangerous for fish?

The answer to your question is yes and no. If you are using UVA light (black light) then this is safe for your fish; most of the light sources used on fish tanks do emit these wavelengths to some ...
trond hansen's user avatar
  • 19.6k
5 votes
Accepted

Do betta fish attack snails?

I've gone through two snails with my betta over the last few years. I've never seen the betta care about the snail's presence. I would think the snail probably died of natural causes. I don't think ...
PudgeBlossom's user avatar
5 votes
Accepted

Will neon tetras eat ghost shrimp babies?

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 ...
Diether's user avatar
  • 1,285
5 votes
Accepted

How to free a catfish from a strangling rubber band?

Looks almost like a plastic washer. I don't know whether there is a "correct answer" for this but I would try. He will surely die eventually, probably with suffering, if you don't try to do ...
Christy B.'s user avatar
  • 3,017
5 votes

Can I break a betta food feeder in half?

You can break these up but remember that if it's one you apply to the glass, you'll need enough surface area for it to stick. I've done this before with the smaller tropical tabs for shrimp and as ...
Henders's user avatar
  • 5,125

Only top scored, non community-wiki answers of a minimum length are eligible