Questions tagged [aquarium]

Indoor containers holding water and creatures (fish, crustaceans, snails, etc.). For specificity, consider adding a "freshwater" or "saltwater" tag.

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1answer
58 views

Fatty belly for my zebra danio - what should I do? I don't think she is pregnant

I have another and she also have the same fatty belly:
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1answer
72 views

How to increase goldfish color?

I was fooled a bit when buying this one fish, when the fish arrived it looks not so appealing to me... is there something I could do to brighten it's color or should I just ask for a bit refund? I ...
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53 views

Why my aquascape shrimps died

Yesterday on around 5 pm I put my two of 10 g aquascape outdoor, my intention is so I don't have to use LED light during the day. Right at the next morning on one tank, many of my shrimps died, but ...
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1answer
25 views

Is my platy pregnant [duplicate]

Hi, Is my platy fish pregnant, it’s developed a black spot in belly, hiding and being chased my other fish.
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1answer
76 views

What is this white-ish buildup on my fish filter?

What is this white-ish buildup on my fish filter? Should I be cleaning more often?
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60 views

Hydra infestation

Recently I’ve noticed a hydra infestation. I’ve pulled out about 5 hydras already, but I know there are some left. One of my golden back shrimp have already lost their life to the hydra’s paralysing, ...
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1answer
46 views

What happened to my betta fish?

I recently bought a platnium betta male who just passed. I had him in a tank with 2 mollies and a female betta, but they all seemed to get along perfectly. I do believe that I should've taken the ...
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1answer
71 views

How can I help my fish which was exposed to UV light?

I have installed a UV lamp in my aquarium and had it on for 12 hours. After that my flowerhorn fish seems to turn pale in colour and his eyes seem to have turned blind. How can I cure my fish? Is the ...
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1answer
68 views

Help! Fish tank keeps becoming cloudy with a green tint

My friend texted me that her 30 gallon (around 114 liters) fish tank keeps becoming cloudy. She has eight small fish in the tank, which means that her tank is not overcrowded. She told me that after a ...
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23 views

Can you estimate when a shrimp is going to give birth

Now my shrimp is pregnant. I know I have been asking a lot of questions about my shrimp pregnancy but yes. Either ways, this is my sunkist shrimp. One of them. I want to see if it’s possible to tell ...
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32 views

I want to buy an official breeding contest shrimp. How can I get one?

So I’ve seen some breeding contests on youtube and the shrimps look awesome but I do not know how to obtain them. If anyone knows, please tell me! I really want to have them! I’ve tried looking in ...
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1answer
56 views

How to protect shrimp babies?

I have a tank of shrimps where I have a red cherries that is pregnant and two yellow sunkist shrimps that are pregnant. To keep their soon-to-be-born babies safe, what should I do? I have a serial ...
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1answer
101 views

A sudden death of my catfish

I had a catfish, acquired in November; he was a small spotted albino hoplo catfish. During a 20% water change, and a small bang he went into a frenzy of swimming upside down, it seemed like his ...
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1answer
74 views

Is it possible to tell shrimp eggs if they’re cross bred?

I have noticed that my shrimp are recently becomin g pregnant, also I keep my shrimps in one 40 liter tank so I wonder if it’s possible to tell by only the eye if the eggs are cross bred. You may be ...
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1answer
33 views

Povidone iodine for fish Mycobacterium?

I may have rescued a betta that has Mycobacterium. He is currently in a clear plastic tote in 1 gallon water. I feel so bad for him, that I want to move him to a 5 gallon tank. While I researched ...
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1answer
46 views

Betta fish has white growth on his back. What is it and how can I treat it?

My Betta fish has had a white growth on his back for over a week. Pictures linked below. I'm keeping him in a 5 gallon tank and am replacing 1/3 of the water bi-weekly. No filter because the one ...
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27 views

Too much solid debris after filter media change

I have my tank for about 10 years now. Three years ago filter stopped working and has been replaced with Tetra that was available at hand. It was working fine until couple months ago. It is still ...
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Mollys appear bloated after eating bloodworm

We have a 60 litre tank with around 6 adult fish, and 6-8 juveniles. They are mostly happy, rarely swim at the surface, and spend much of their time foraging. On the rare (maybe monthly) occasions I ...
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27 views

How to encourage an aquarium plant to carpet on it's own?

I have a small 10 gallon planted aquarium with Staurogyne repens as the main plant. My long-term goal is to have the S. repens cover most of the substrate. The substrate in my aquarium is organic soil ...
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1answer
47 views

How to maintain a snail tank without a filter?

I have received a rabbit snail, two golden Incas, and a nerite. I only have a 10 gallon tank and my parents will not allow me to get a filter for it. I am a first time keeper and very worried about ...
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1answer
51 views

Helping an old betta with fin holes

I’ve had my betta for two years. He was full grown when I got him so I’m not sure how old he is. He’s got pretty classic signs of age - humped back, difficulty attacking food accurately, not active at ...
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1answer
200 views

Is it safe to feed mosquito larvae to my fish?

A long time ago, I had a small fish that would not eat any fish flakes/pellets, So I tried my luck with mosquito larvae from outside. It ate those just fine, and after a while, I was able to transfer ...
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27 views

Female Guppy Health Question

I went to feed my fish and I always check on my female guppies because they are the smallest in my community tank. I saw that one of my female’s gravid spot was a “odd” color to me. It is usually a ...
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2answers
69 views

I want to be prepared for my fish

For some time, I've been obsessed with the idea of getting a pet. It took me some time to decide which one I really want, and I decided on fish. However, it needs some proper preparations like an ...
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1answer
58 views

White patch and spot on my goldfish?

One of my goldfish, which I've had for 3 months, suddenly got a white patch on the top and a white spot on its left side (the yellow-black one in the picture). I just noticed it today, but I'm sure it ...
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0answers
63 views

Is My Guppy Sick?

My adult guppy has been acting strange in my opinion. He has been inactive unlike the other guppies and platy fish in the tank. I’ve noticed that he has been swimming in place at the top of the tank. ...
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0answers
34 views

Digital pH Tester - fish tank

Is there any digital pH tester on the market at all? I've done a search around and pet-stores and the usual companies (Fluval, API, etc) don't sell them as far as I can tell. Some companies I don't ...
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2answers
83 views

Best Brown Algae Eaters for Freshwater

I have brown algae growing in my tank and I was wondering if Cory Catfish could clean it. If they could not, what other fish, besides shrimp and plecos, could clean the algae? Just a note, my tank is ...
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1answer
115 views

What is this alien in my shrimp tank?

The tank is set up since nearly two months now. The shrimp have been in it for around four weeks. One small algae eating fish and one big and accidentally some small snails are living there too. But ...
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1answer
49 views

How do I remove hair algae from my fish tank?

I have a 5-gallon tank that has a betta, a few live plants, and a hiding place that I have had up and running since August, the fish has been in there since September. A few weeks after adding the ...
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1answer
247 views

What is special about an aquarium using no CO₂, no fertilizer and no filter?

A random video on Youtube presents itself with the following title: 24th Month – (Carrot Feeding Frenzy) NO filter, NO CO2, NO Ferts 5 Gallon Nano Tank Presumably having no filter, no CO2 and no ...
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2answers
68 views

Why are undergravel aquarium filters no longer popular at stores?

I recall that when I started fish keeping, there were basically two choices for filtration: under-gravel filters and hang-on backs. There were also expensive canisters for people with large setups. ...
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2answers
66 views

Can't reduce my nitrite/nitrate levels, any help appreciated!

I set a 60 litre tank up and run it for 3 weeks, all water parameter levels fine. Added 4 fish, left 4 week's all fine. Added 4 fish again and 5 days later fish started to die. Checked levels and the ...
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71 views

How much space does a fish need?

I am wondering if there is any accurate way to determine how much space any particular fish needs. I have heard things like 1 gallon per inch of fish, but this cannot be accurate as a betta (2.25 ...
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29 views

If i have sand substrate will my good bacteria beneath the sand still get fed?

I just put power sand, pumice for living bacteria, then on top of it hard sand, then the toppest is full the finest granule sand. I filled the water and now wait to cycle the tank. I wonder whether ...
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0answers
56 views

Goldfish skin around the intestine area is gone and stomach looks to be caved in

This is my first time posting so I’m sorry if I made any mistakes with my post. I think I’m going to lose one of my goldfish. About 2-3 weeks ago both of my goldfish (I only have 2) developed ammonia ...
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84 views

What should I do to my goldfish swimming on surface?

I am new to goldfish, it is swimming on surface like gasping for air every 3 minutes or so. So, I did 40% water change, using drinking water just now. Should I do something else? There is 24/7 filter ...
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1answer
9k views

My fish are disappearing :(

I have a 10 gallon tank I had 3 guppies and some snails. Only 2 adult snails and some babies. I had 3 guppies the night before and the next day one of my guppies disappeared. This has happened before ...
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1answer
49 views

Can I fertilize aquarium plants in a similar way to garden plants?

For most fertilizers used with garden plants, they are labeled with percentages of nitrogen, phosphorus, and potassium. Nitrogen is good for helping the tops of the plants grow nice and green, the ...
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1answer
30 views

How to safely get iron to aquarium plants?

I have a planted aquarium that I've been working on for a while and I'm still trying to get my plants to grow nicely. From doing a bit or research, I believe that my aquarium plants may need ...
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182 views

What should I do about my Siamese algae eater fish missing?

I put 1 Siamese algae eater fish in my 10 gallon (38 liters) tank aquascape with no fish yet, last night, until now it's been missing. What should I do?
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27 views

What do I do about nematodes (roundworms) in aquascape?

I have 10 gallon (38 liters) tank aquascape, no fish yet, I noticed around 20 nematodes swimming around, can I just put platy fish and shrimp there? How do I get rid of the nematodes?
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16 views

Pregnant platy, what should I do? [duplicate]

I have a platy that is pregnant. I used to have her outside in a little pond (a bath tub), but put her inside by herself in a 5 gallon (19 liters) aquarium, so the babies don't get eaten by the other ...
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2answers
59 views

How to identify metal toxicity in aquarium

Related to this question: If I start experimenting with metals for aquariums, how can I detect that the metal is causing the problems? I want to clearly identify the metal toxicity from wrong pH, ...
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1answer
88 views

Why are my Betta’s fins curled and maybe spotted?

I bought a Betta for my daughter that has quickly become my 5th child. We bought him from Petsmart, as I knew little about where else to go - especially with Covid19. He is in a 3.5 gallon (13 liters) ...
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2answers
100 views

Why is aquarium siphon so slow?

I bought an aquarium siphon for water changes. I purchased the extra large size, which has a 1.5 ft (46 cm) long vacuum tube, and which comes with a squeeze valve to get the siphon started. When I ...
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0answers
57 views

What is this fish disease?

I had 4 platies and 5 danios but there are only 1 platy and 4 danios left. mysteriously, they die in the same manner, like sinking to the bottom of the tank and resting there. I was wondering if they ...
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0answers
30 views

Advice on sick Betta. Possible Dropsy?

About a week ago I noticed my betta, Florence, had a lump on his right side. In the days prior he was very slim and active. On the day of finding it I noticed he was still normal, his appetite hadn't ...
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2answers
108 views

How often to do water change for betta fish

How often should I be doing water change for my betta? My wife seems to think it should be done pretty often.
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42 views

Separating the fry from parents - German Blue Ram

If I leave the eggs to hatch with parents and let the parents raise the fry, when should I take the fries out? I mean, for how long they can live with their parents? I know at some point parents will ...

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