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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16 views

Is my Red Platy pregnant? [duplicate]

Hi can someone please tell me if my red platy is pregnant.. I got her from Maidenhead Aquatics about 3 weeks ago and she seems 'bigger' to me She also has a dark line running down her stomach I placed ...
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51 views

Whats causing filters to implode?

I've got two 24 gallon tanks that both have the same filter inside of them but for some reason in one of them the sponges seem to be sort of "imploding" and I've got no idea what could be ...
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Is it acceptable to keep an aquarium in a garage?

I was wondering if it is possible to keep an aquarium for tropical fish inside a garage in the UK? The garage is made of brick but does not have any insulation and therefore gets quite cold in the ...
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What is this white foamy structure in my aquarium?

My aquarium (180 l) is inhabited by two Mikrogeophagus ramirezi, several Corydoras julii and some uninvited ranshorn snails. Today three of these structures appeared. They are white, around 1 cm wide ...
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1answer
32 views

Are there any natural forms of aquatic vegetation which do not stand up in water? [closed]

We are carrying out some experiments where we study influence of underwater vegetation on waves. Unfortunately, the stalks of artificial 'vegetation' which we have seem to be too dense (or too stiff)....
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1answer
87 views

Baby guppies 'appear' when rearranging tanks

I have two tanks with around 30-40 guppies and when I have re-arranged the substrate / plants / decorations I sometimes find that one or two baby guppies 'appear'. The mother does not look pregnant at ...
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Blue dream shrimp pregnant? [duplicate]

So I have two blue dream shrimp, I think one male and one female. The female is looking quite a bit rounder around the belly than when I got her. I don't know how old they are so it might just be ...
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Salt water aquarium on a jetty over the ocean, with no filtration just constant ocean water circulation

I am very fortunate to be living in Raja Ampat, West Papua, one of the richest areas in the world for biodiversity. I also live directly on top of a fringing reef. My house is on stilts over the ...
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Is the injection of carbon dioxide into a planted aquarium a detriment to fish living in it?

From the start, thank you for your time and consideration. Whilst planning a planted aquarium setup that would include CO2 injection, I stumbled across an article about possible behavioral ...
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Do I have to take my Koi Fish out of my 30 Gallon Tank eventually?

I accidentally bought a Koi fish thinking it was just a normal goldfish. After about 4 years now, he has gotten bigger (mouth to tail ~ 7 inches long) and more aggressive in our 30 gallon aquarium. He ...
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Why is my betta fish starting to have a dull color? [duplicate]

I have a betta fish that I’ve had for a year now. I’m not exactly sure what kind he is, but I found a picture of him when I first got him and he was a really bright pink/purple, his tail and fins were ...
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Help me sex this Endler's livebearer

It looks like a female (no colors and round belly), but it seems to have a gonopodium organ, a dot on the tail-fin that other females lack and the gravid spots near its vent are fainter and higher up ...
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46 views

How can I prevent my plants from getting eaten too fast?

I've got a huge problem with my fish and plants. They eat them too rapidly. Put in 5 plants yesterday afternoon. Today they are half eaten already. Mostly, the sword bearers are responsible. Eaters ...
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Does mint plant affect guppies?

Can I try the step 1 and 2 posted here with a fish tank of guppies: Cutting a stem of mint; Placing mint stems in a glass of water fish tank containing guppies? Will guppies enjoy the mint plant? Is ...
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How to get rid of black hair algae?

My aquarium is infested; it's on the plant leaves/pebbles/glass. I tried to remove everything manually but it soon bloomed again, big water changes, shortening the lighting time, but no success. It ...
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118 views

Why do my Betta fish keep dying?

I got my first Betta fish (name: Dream) back in September of 2020, he was the first pet I've ever owned and it took me a little time to be able to get him a proper home. But after educating myself ...
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1answer
471 views

Common goldfish with "bleeding" around face, gills and fins

I look after two common goldfish in a 56L filtered tank with an airstone for additional aeration. Over the past two days, one of the fish has been appearing to be sick, suffering with what I can only ...
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41 views

Color change in guppy

My guppy looked pretty healthy and shiny just three days ago: And yesterday... it just darkened. The scale pattern just got so dark all of a sudden. Should I be worried? And this is today:
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37 views

Is my guppy pregnant? It's my first fish so i don't know [duplicate]

Is my guppy pregnant? I really hope it is but I'm not sure...
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1answer
138 views

Difference of CAE, SAE, and OTTO fish

I bought an algae eater at Petsmart and I recently learned myself that there are different algae eaters that look the same at a young age. I bought an algae eater that has a brown and cream brown body....
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39 views

Black molly male attacking female

We have 3 female black mollies. 2 black ones which have turned a bit silvery/whiteish. Originally, we had one male which had the same colour, but we noticed it will be dying soon (swimming upside ...
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1answer
98 views

Aquarium with mud production that clogs the filtration system

I've had a 120 L aquarium for a few years; about 40 small fish are in it (including 6 Corydoras paleatus and 12 fire tetras). Now, as of a few months ago, I've noticed that the filter, the sponge, and ...
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1answer
72 views

Is my guppy healthy? Its colour is weird

I just bought a male and female guppy, and the male guppy is really small, probably a month or two old. This is my first time getting a fish. The male guppy seems to have a black spot near his head. ...
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1answer
60 views

Is there anything more that I can do to make my dwarf hamsters more comfortable and happy?

I have three Russian dwarf hamsters that are almost 41/2 weeks old now. My sister purchased two hamsters that she thought were both females, but she realized they were not once she unexpectedly ...
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1answer
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Dried goldfish became alive after re-introducing into water

Anecdote My relatives went on a trip leaving behind their goldfish. When they returned, they noticed that a fish had jumped out of the water and had become dry, apparently dead. But the fish was put ...
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55 views

Pregnant platy fish not releasing fry and developing a white tube gland [duplicate]

I've had my platy fish for 3 weeks and she's pregnant. She squared off last week, as well as developing a white tube/anal gland. I'm just wondering if anyone can help as to when she might release her ...
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1answer
185 views

Fish swimming with mouth always touching the water surface

I have a fish bowl and they are all swimming with their mouth touching the water surface, almost always. Are they hungry? Do they suffer from insufficient oxygen concentration in water? Is the water ...
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59 views

Can tapeworms from brine shrimp cause infection to humans or to fish?

I have angelfish which laid eggs which turned into fry. I am feeding them with baby brine shrimp. We all know that brine shrimps (especially the ones which look orange and often used for fish feed) ...
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1answer
142 views

How many fish for a 29 gallon tank?

I am wanting to know how many fish could thrive in a 29 gallon (110 L) tank. Dimensions of the tank are 30” in L x 12” in W x 18” in H (76 x 30 x 46 cm). These guys could include any live bearers like ...
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38 views

Does my goldfish have fin rot? [duplicate]

This is my fish, today I noticed that they’re tail had split all over, I can’t find anything online that looks similar to this. Please help! What could this be and how could I treat it? They have two ...
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1answer
102 views

How do I keep my fish tank and fish safe against Raid Fogger bomb for roaches?

This is urgent for me, so any immediate suggestions/answers are appreciated! I live in a one-bed apartment with three other roommates in Colton, California. Recently, we installed large tanks with ...
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1answer
106 views

Betta dying help

I forgot to save the old water from when I cleaned my betta’s tank and now he’s floating at the bottom. What can I do? I have already tried putting my guppies’ tank water in to do half half and it’s ...
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28 views

How long should I leave old filter in new tank after installing a second, new filter to replace the old one? [duplicate]

Hi I started a tank a week ago with 3 guppies in my daughter's room, but the HOB filter was too loud, so I have now changed to Fluval U2. I have both filters in tank now since yesterday, but my ...
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1answer
206 views

Female guppies are fine, but male is sick

I recently got a 54L aquarium and stocked it with 4 small guppies - 1 male and 3 female. Initially they all seemed to be doing fine - eating, very active within the tank etc. The male looked great ...
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3answers
596 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
84 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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58 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
38 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
96 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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66 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
83 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
140 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
128 views

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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27 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
65 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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2answers
173 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
76 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
46 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
78 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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