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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0answers
51 views

Reasons for killer fishes?

I've got a recurring problem with killer fish. In the last 3 years I repeatedly had recurring sudden spikes in fish deaths. Via pure coincidence I found out that it was no strange sickness or water ...
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45 views

What are these little creatures in my aquarium?

I have recently noticed these tiny creatures on the glass and other surfaces in my aquarium. What are they, and where could they have come from? They are about the size of a sesame seed and growing. ...
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2answers
66 views

My brand new goldfish is gasping for air

Today I went to the pet shop and got a goldfish. My tank is 20litres and the goldfish is pretty small. When I first got the fish it was gasping and eating the bubbles in the bag I thought this was ...
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1answer
38 views

Fish needs light in its tank or not

Do fish need light in their aquarium? I have a fish tank in which there are approximately 10 fish. There is a light on the top of the tank, which I keep on during evening time. I Do not know ...
2
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1answer
29 views

How to set the temperature on an Eheim aquarium thermostat?

I'm using an Eheim thermocontrol 50W thermostat in my 60l freshwater aquarium. The official manual and dozens of forum posts state that the temperature is set by turning the outer blue wheel to the ...
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2answers
41 views

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

My turtle tank is half of its height filled with water. Where the filtered water falls from the pipe into the water, there is a lot of limescale on the glass. What tools (sponge, brush...) could I ...
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45 views

My empty but not empty fish tank

My Betta died a couple weeks ago so now i have a tank filled with water, can my small female goldfish be in the small rectangular container that has rocks a cave and a sea anemone, and this tank has ...
2
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1answer
37 views

Ich control in tanks, nitrites and nitrates

I have recently returned my fish to my main tank, a 65g, after treating two weeks for ich. Two days after treatment ended, I transferred my larger fish home to a fully planted tank. Yay, no flashing! ...
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20 views

Efficient aquarium cooler [duplicate]

I wonder if it'd be a good idea to cool an aquarium with an external source of water, e.g., pool water. Because my tank runs hot in summer (~30C) and needs to be brought down to 25C, I was thinking if ...
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14 views

Will ich medicine harm my betta if he doesnt actually have ich?

A few days ago I noticed a spot on my betta's side just next to his gills. It wasnt completely white in color but definitely lighter than the rest of his body. I tested his water and there was an ...
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2answers
90 views

What's wrong with my snails' tentacles?

I've had an exclusive snail tank set up for several months, housing bladder snails, pond snails, MTS, and ramshorn snails. It has been going well up until this point. Recently, I've noticed that ...
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2answers
65 views

guppie male harassing females

Background I have 2 female guppies in a ~60 L planted aquarium, temperature ~25 deg C, internal filter, relatively hard (but not too hard) water. They've been on a diet of standard flakes. Change ...
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18 views

Betta fish with black dots on his body after vacation [duplicate]

Hello, I’ve just gotten back home after being gone for a month and I noticed that my Betta has black spots on his body, not his fins and I searched it up but I couldn’t find anything about it. When I ...
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1answer
106 views

Why do my aquarium plants appear like they are mummified?

My 20 gallon tank is 6 months old. I haven't had too many problems with it, just a few diatoms 2 months into cycling it. I added 4 Serpae tetras, a Golden algae eater, 2 shrimp and an Assassin snail ...
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2answers
39 views

Setting up new fish tank for new fish - will using decor from my existing tank help spur the bacteria growth process?

The guy at petsmart told me if I used the bacteria-established cartridge filter from my existing tank in the filter of the new one for a few days, it would help set up the bacteria (this is all before ...
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32 views

Why is he so small?

it’s kinda hard to see, but my flame tetras is super small! I do not know the gender of all of my fish, but 5 of my tetras are roughly the same size, but my 6’th one is really small. When I feed them, ...
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1answer
33 views

Why are my 6 flame tetras not swimming like normal?

Usually I see my 6 flame tetras cooped up in the low corners of my tank. The water temp is perfect, and I am working hard to get the perfect pH level, but when I look at my fish, the’re always either ...
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3answers
44 views

ADF and Mystery Snail Emergency Tank Transfer

Late last night, I noticed ich on my neons. I bought medicine, but before I added it I noticed that it was not suitable for frogs and snails. I had some de-chlorinated water handy, so I dumped the ...
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1answer
63 views

What are these?

(click to enlarge) I have been seeing these around my tank, above and he waterline! They move, and if cut in half, they duplicate. They do NOT have a triangle head. If they get in the water they are ...
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2answers
60 views

What is my apple mystery snail doing? (Male)

After a day, when I turn on the fish light, I see him rush to the glass. He goes up... and does what is in the pic! He keeps getting farther and farther off of the glass!! If he falls he goes back up! ...
2
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2answers
146 views

Cooling aquarium with aluminum heat sink

Summer is approaching again. Last summer, I had a lot of trouble keeping the temperature in my aquarium at 30°C. My fish prefer 21-24°C, but I couldn't get it any lower than 30. So I want to avoid ...
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30 views

Neon tetra left fin looks snapped and white

Hi I have 6 neon tetras in a 29-gallon tank. I noticed one of them has the left fin looking like snapped to the side and white. It swims well and eats well. No sign of discomfort from that fish. Any ...
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1answer
53 views

Broke my Seapora AquariumController. What are my options?

I'm a fool and dropped the controller. The people at the store I bought it from didn't really have a solution on how to resolve this...anyone know how I should go about replacing it? thanks!
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1answer
54 views

Can you use super glue on outside of fish tank?

Trim of my fish tank is leaking. Can you use super glue on outside of fish tank?
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2answers
70 views

Can I fill my aquarium with the water from a purifier?

I only have a bore well in my home so I bought an 8 stage water purifier with RA And UV which adds minerals to the water. The final water TDS Is 44. I'm keeping tropical fish such as guppies and Angel ...
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2answers
65 views

is this overflow system gonna work?

I'm planning to make this overflow for my tank. the goal is to drain from bottom. in theory it will work but in real world i'm a bit worried about the noise that "air in" is going to make and where ...
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4answers
64 views

How to raise PH in RO water? (with chemical compounds no commercial products)

I am using RO water for my newly started 100 lt aquarium and it results to a Ph of 6-6.2 which is too low considering that KH is 0. In this case, I need something to raise PH (and KH eventually). ...
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1answer
53 views

Using glass pipe

I want to use glass pipe instead of a regular fitting for bottom drain of my aquarium. for example 10cm of glass pipe that glued to the bottom hole of aquarium using silicon sealant and the end of it ...
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1answer
156 views

Betta died of fungal infection, when can I add a new betta?

My little betta passed away after a long struggle of being sick, getting better, being sick. He finally developed a fungal infection that I couldn't kick and he passed away. In the immediate moments ...
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1answer
82 views

How do I maintain a population of daphnia inside a filtered tank

I have an aquarium with a HOB filter. I tried to introduce a large population of daphnia to the tank, but by the next day, they had all been either eaten or filtered out. Is there any way to maintain ...
4
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1answer
60 views

If the water quality is already perfect, do I need to wait any longer?

I just set up a small 23 liter aquarium for red fire shrimps. There is no shrimps in there. I filled up the tank with water from a rain collector and mixed it with some mineralised water. This has ...
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1answer
121 views

Why does my African Clawed Frog keeps banging into the tank glass and pawing at the corners with his front feet?

I just recently got an african clawed frog which I rescued from being dissected. He used to live in a large plastic bin with 3 other frogs and sometimes I'd see them nipping at each other. He keeps ...
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79 views

What is the life expectancy of Tarebia granifera?

A few days ago I found a few snails in my aquarium. As it looks like it seems they are of the Tarebia granifera species. When I looked them up I found quite a few things about them BUT one thing I ...
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2answers
65 views

Problems keeping stable PH in aquarium

I've had some fish deaths lately and paying attention to water params, I've gotten a little concerned about my PH levels. My tap water comes out of the tap with a PH of around 7.6. After aging it ...
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2answers
82 views

My molly is nipping at one of the cherry barbs in my tank. What should I do? The barb is losing colour

This has never happened before. My fish are in a 20 gallon tank, they've been fed the exact amount every day, and none of them have had problems before (other than another incident with my (now moved) ...
2
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1answer
109 views

When should I use bleach to fix the issues in my fish tank?

I have a 55 gallon tank that has been giving me problems but I'm not sure if I'm just over thinking or doing to much. When does one know it's time to bleach the tank to kill anything that could ...
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1answer
51 views

Plants for a brackish water tank?

Anyone know some plant salt resistant for this type of tank? I need a some reference cause this tank have a bit percentage of salinity in the wate, is lower percentatge but this can harm the plants. ...
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3answers
442 views

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

I recently had a pet beetle larvae pass away, leaving me with an empty tank. Seeing the empty tank just sitting there makes me pretty sad, so I was wondering if it was a good size for anything else. ...
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1answer
34 views

How is GFO reactor better than PhosBan medium in the filter?

I have a cyanobacteria problem. I am using PhosBan/Phosguard as a filter medium and it doesn't really work that well, shall I worry of getting a GFO reactor or am I good with how it is? How would GFO ...
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1answer
50 views

Does Waterfall Discharge make the water 'cleaner' than surface discharge in a fish tank?

So, My mother is threatening to return the fish tank she got me for my birthday unless I would set the filter to waterfall discharge, I told her I wouldn't as the current is too strong for the type of ...
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0answers
20 views

Best tropical fish breeds and numbers for a 54l tank [duplicate]

I have a 54l Jewel tank with 5 different sponge filtration system. It has a prolific amount of various aquarium plant life flourishing. At present the only fish is a 3 & 1/2 inch sucker fish .. I'...
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0answers
78 views

Suddenly lethargic Antenna/ Suckermouth catfish

I've got a 31,7 gallon tank in which about 35 fishes live. For cleaner fishes it is: 2 Antenna catfish (black and brown) and since almost 4 weeks now also 5 armored catfish (others are all non ...
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1answer
97 views

Shrimp Breeding

I just picked up some Jade Shrimp (pretty cool, bred to be green, not dyed) and the employee (whom I'm quite acquainted with) threw in a pregnant one! Woohoo, right? Anyway, the question is, she is ...
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1answer
37 views

Relentless Nitrites

So I’ve recently set up a small 5 gallon tank, planted heavily, and started a fishless cycle. I got stuck on my Nitrite stage as a result of overdosing ammonia, but it finally came back down 3 days ...
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2answers
94 views

Multiple Male Bettas in 200+ Gallon?

I am not doing this, nor do I plan to (due to the aggressive nature of male bettas). But I was wondering if it would be possible to house multiple male bettas in a 200+ gallon tank? I definitely ...
2
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1answer
227 views

Why does my nitrate level always read 0?

I have the following tanks: 5 gallon, 2 months old - housed betta and shrimp 10 gallon, 2 weeks old - used established media to seed aquarium alongside cycle and beneficial bacteria 3.5 gallon - ...
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1answer
126 views

Acceptable temperature shock for aquarium water changes

It's generally accepted that it's good to get the temperature of your new water to match the temperature of the tank water before introducing it. You don't want to change the temperature of the ...
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2answers
129 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 ...
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3answers
182 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 ...
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3answers
172 views

My husband built a 98 gallon fish tank. Is it normal for a chirping noise to happen

My husband built his own fish tank from sealing it himself and building the frame. Should it make a chirping noise all of a sudden.