Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [fish]

Fish kept as pets in a natural or artificial enclosure.

0
votes
0answers
16 views

Treating guppies for internal worms in a community tank with Red Cherry Shrimp

I have noticed that my guppies may have internal parasitic worms. I've seen small, thin red spikes & long white, translucent tubes protruding from their anus. One of them is noticeably thinner ...
1
vote
0answers
20 views

Which nano fish for a big, colorful, community tank?

I'm planning to set up a big (150 x 65 x 50 cm) tank with lots of small colorful fish and shrimp. I want the tank to be heavily planted I want the tank to be very colorful I want to keep a few ...
2
votes
3answers
91 views

Fish keep dying, rogue homicidal fish or is my filter too powerful?

I have a 36 gallon tank with an Aqueon® QuietFlow Aquarium Power Filter 55/75. as of now there are 2 red minor tetras and 4 neon tetras. I had another red minor tetra and 4 more neon tetras that all ...
0
votes
1answer
33 views

What’s wrong with my Betta fish?

I can’t tell if it’s a fungus disease, but he lost all of his color. My sister never cleaned his tank so I think that might be the reason behind it, but I don’t know what disease he has so I have no ...
0
votes
1answer
33 views

Is my Betta fish dying?

Please help! My Betta fish has been laying at the bottom of the tank for a while now, and I have no idea why. I’ve tried changing the water to warmer water and cleaned the water. He did fine before ...
-1
votes
0answers
16 views

Is my platy pregnant? [duplicate]

So I just bought this Plath from a pet store. It’s a female. It was with lots of males. She has a big stomach and she is like floating at the top of her tank. She does not have red gills. How do I ...
2
votes
3answers
36 views

What substrate/base should I use for this small fish pond?

I have bought a property that has a tiny decorative pond with waterfall and sizeable filter. It looks as though a larger pond use to be in its place. I plan to install this product: https://www....
3
votes
1answer
46 views

My fish tank still smells a little of vinegar

Is it ok to put my fish back in the tank after I've cured the silicone but it still smells a little of vinegar?
3
votes
1answer
46 views

Losing Fish Though Levels Test Fine

We have a 40 gallon tank with an established Nitrogen Cycle. We went several months with just 1 Three-Striped Cory and 3 Gold Dust Mollies. The tank has its own filter that came with it, rated for ...
1
vote
0answers
18 views

My betta is laying as the bottom of the tank with its head pointed up, why? [duplicate]

My fish lines in a 2.5 galling tank with a automatic heater and a thermometer. I got it yesterday (after my first one who lived for 2.5 years lived there) I cleaned it thoroughly and made sure no ...
1
vote
2answers
84 views

Bubbles on top of fish aquarium

I have 4 small fish in my aquarium (two Zebra Danios and 2 others which are a similar size but I don't know what they are). Every few days a lot of small bubbles appear at the top of the aquarium. ...
1
vote
3answers
57 views

Can Bettas have lazy personalities?

I had a betta a few years ago who was the most active, happy fish I've ever seen. He enjoyed hide-and-seek, watched me work at my desk, and constantly swam around his 5 gallon tank. He was a strong ...
1
vote
1answer
61 views

Why has my fish laid eggs but is a platy?

My platy was showing all the signs of being pregnant so we had it checked and she was but when it came to the day she had eggs in a sack and took 2 days for them to come out completely however we ...
0
votes
1answer
83 views

Fish disappearing in small tank [duplicate]

I have a five-gallon freshwater fish tank with 3 guppies, 2 ghost shrimp, 7 nerite snails, 1 mystery snail, and 3 dwarf catfish. 2 catfish and 2 guppies have disappeared completely. There are 0 bodies ...
3
votes
2answers
96 views

Can I keep crayfish and guppy fish together in a tank?

I have an aquarium and keep peaceful fishes together like : Angel Guppy Shark Saugmaulwels These are my fishes picture in aquarium : My fishes living together peacefully, But I intend to buy a type ...
2
votes
1answer
45 views

How many mollies and glofish can be in a 20g tank?

I’m cycling a 20g tank and I have 3 mollies currently. As the tank is done cycling, I want to add more mollies and glofish! How many of each do you recommend?
1
vote
0answers
27 views

I think my beta fish is sick, what should I do? [duplicate]

I've had my beta fish for about a year and a couple months ago I noticed its fins were turning a blackish colour and appear to look "fried" at the edges. Now my fish doesn't eat and I think its ...
2
votes
1answer
38 views

How do I clean an aquarium?

I just got a used aquarium from my cousin. It's dry, but there is black stuff on the sides, and I'm not sure how to clean it off. It's completely dissassembled, but the parts are inside. Everything ...
7
votes
1answer
66 views

Streamlining Aquarium for Frequent Travel

Currently, I have a planted 30gal tank with a male betta and a few shrimp/snails. I'm very attached to my fish, and enjoy the ability to give him a tank much larger than the average pet-store betta ...
1
vote
1answer
37 views

Silvery fish with red eyes and neon fins

Please, help me identify this fish. After going through some local aquarium & pet stores in Chengdu, China, where I am visiting, I was able to identify most of the fishes I saw. Except this one. ...
3
votes
1answer
53 views

Black long fish that can swim upside down

I am new to aquarium fish. Could anyone help me identify these species? I found it in local aquarium store in Chengdu, China, where I am visiting. It is about 6 inches long, it has a black body with ...
1
vote
0answers
13 views

Betta losing colour [duplicate]

My Betta is losing its colour from its head. This seems to be progressing daily. Please see pics. What is the cause and is there any cure?
1
vote
0answers
17 views

What’s wrong with my Betta? [duplicate]

My Betta is very healthy,water is good and she is always swimming around. But today I noticed a weird tear in her fin, I decided to just change the water and let it heal on it’s on and then later ...
2
votes
1answer
62 views

Will my bristlenose pleco eat aquarium plants?

I've got two 20 gallon fish tanks. One has a bristlenose pleco and 5 tetras, one has 4 corycats and 4 nannostomus and a ton of plants. I am thinking of merging the two tanks as keeping both clean is a ...
2
votes
1answer
80 views

Does a goldfish experience feelings of loneliness?

My goldfish has been the lone fish in her tank for a number of months now, and quite recently, has begin to behave differently and remain in one small area on the very bottom of her tank. Could ...
1
vote
0answers
18 views

Betta fish eating but stays at tank bottom [duplicate]

About 2 months ago I saw the fins on my elephant ear betta were tearing but I was told that it was not fin rot. He was swimming and active and eating but now he lays at the bottom only coming up to ...
1
vote
1answer
71 views

Half-Moon Betta fish tail-fin is curled in on itself, what could be the issue?

After having my beta for two weeks I noticed that his tail was curled in on itself, and when I had to net him to move him i noticed it got worse. He seems to swim fine but its just constantly curled ...
1
vote
0answers
21 views

Does my fish look like she is ready to drop her fry? [duplicate]

I know she is prego but I don’t know when she will drop her fry help
2
votes
0answers
95 views

Freshwater aquarium - many fish batches dead, LFS keeps claiming that water is 'perfect'

Got a new 30 gallon aquarium ~1 month ago. The seller told me to use tap water (no conditiner), run the pump for a week (to get rid of chlorine), then bring a sample for test. Did that, didn't use ...
0
votes
1answer
58 views

Is my betta getting old or is he sick? [duplicate]

My Betta fish has white patches on his fins. One of the patches has a small whole in the middle. There are no signs of dulling scales, red/bulging eyes, or any other signs I found that could mean he ...
1
vote
1answer
60 views

Will pets stores test my aquarium water?

If I have a fish and I don't have the skills and/or supplies to test the water in my fish tank, can I take a sample from the fish tank to the fish/pet store to get tested? If yes, what if any special ...
1
vote
0answers
12 views

Betta laying on bottom [duplicate]

Our little Betta fish has been laying at the bottom of the tank for a couple days. It will move spots from time to time, but is not swimming around like before. I don’t see any signs of sickness on ...
1
vote
0answers
17 views

Saving fish from ick/ich [duplicate]

I have ciclids and guppies and African frogs in a 30gal tank. I'm new to this and didn't realize I was supposed to quarantine new fish before introducing them. I introduced a ciclid with ich without ...
5
votes
3answers
595 views

Can snails and betta fish cohabitate?

So my mom just brought home three snails home. One for me, and two for my brothers. I set the bag in the water for 20 minutes, and then put the snail into the tank. My female betta fish has been in ...
3
votes
1answer
90 views

Fish's fin got torn in garbage disposal

Putter my fish is two years old. Yesterday while cleaning out his bowl, he jumped out and landed in the sink and fell down the disposal hole with freshly cut potato skins. I managed to get him out ...
5
votes
1answer
73 views

Can goldfish be trained?

I've recently got a family of goldfish and I want to encourage them to be interactive. Can they be trained? Background: I have 3 comet goldfish. During the transition to their tank, I must have ...
2
votes
0answers
48 views

How do I tell if my goldfish is pregnant?

I'm new to keeping fish. I picked up 3 comet goldfish a couple of months ago. They've been living in the same tank and one is getting bigger, way bigger than the other 2. Is it pregnant? How can I ...
1
vote
0answers
31 views

I have a 37 gallon tank with one goldfish in it. Any ideas for tank mates?

I have a 37 gallon with one goldfish in it and I just need ideas for tank mates. I know goldfish need a lot of space so I didn’t really want to add more goldfish.
2
votes
0answers
43 views

Starting up a canister filter that has been off for a while

We prepared an Eheim canister about a week ago and had also put some tank water in it but, because of a series of setbacks, we haven't been able to start the filter in our new tank. We are still not ...
4
votes
1answer
59 views

questions about leveling and positioning a 4 foot fish tank

We are beginners but have ended up buying a fairly large (4 foot) fish tank and have some questions about setting it up. we are worried about making sure it is level, as a lot of videos say this is ...
1
vote
0answers
45 views

Does my Betta fish look Ill? [duplicate]

My Betta has this 20 gallon. I wanted to do a bare bottom with plants. So I added the glass jars. With the (I clean it with a vacuum) gravel and plants. I have 70 aqua clear that I baffled with a soap ...
3
votes
0answers
554 views

Aquarium Salt and Pink Salt

Is Himalayan pink salt okay to use in fish tanks? I have read that aquarium salt is good for conditioning water but I was curious if pink salt would do the trick as well?
3
votes
1answer
541 views

New Guppy disappeared from tank overnight

I just got a new guppy yesterday who was living a tank with a young Koi, 4 Tetras and one guppy. The guppy seemed to like the new member of the tank. The next morning the new guppy was gone! I ...
1
vote
0answers
70 views

Betta fish lying at the bottom of his tank [duplicate]

I have had my betta fish for around a week and he seems to like to lay on the bottom of his tank. He is in a 5 gallon heated and filtered tank and he occasionally swims around but usually goes right ...
3
votes
3answers
72 views

Betta Fish. Girl or boy

My fish, Dylan Marie is believed to be a girl. However, I’ve been noticing some bubble nests in her bowl! (Just an FYI the bowl is bigger than in the pictures and she does seem to enjoy her bowl. I ...
5
votes
1answer
73 views

How to get a good picture of pet fish?

It is often important to include a photo of your fish in your question. Based on some of the photos that have been provided this is not always easy. What are the steps to get a clear, good quality ...
3
votes
1answer
458 views

Black dots on betta fins [duplicate]

I have a giant veil tailed betta. Two days ago I moved him from a 2.5 gallon tank (filtered and heated) to a 10 gallon tank with a divider. One side of the divider has him and there is another male ...
1
vote
0answers
950 views

Why is my Betta fish lying at the bottom of it's tank? [duplicate]

My male betta fish is about 1 and 3/4 years old. He is normally more active, but it's been 2 days now since he's started lying at the bottom of the tank and only coming up for air. He lives in a 5 ...
5
votes
1answer
151 views

Why did this fish kill my Kissing Gouramis?

I got two of these recently, and they killed my Kissing Gouramis. The shop owner said that they would be compatible. I don't know what kind of fish it is, nor what would have caused them to kill my ...
4
votes
1answer
58 views

My koi fish ate a piece of gum

I have a koi fish pond with about 14 to 15 inch koi and a neighbor hood kid threw a piece of gum in the pond and one of my koi ate it, how harmful is this?