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Questions tagged [aquarium]

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

0
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1answer
39 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
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2answers
85 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 ...
1
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0answers
24 views

Can I use hard surface protectant to prevent algal growth on my aquarium front glass? Is there something else that will prevent them sticking?

Siliconizing glass makes it non-sticky. Does that or something else prevent algae from sticking to glass so I won't have to scrape the front pane all the time? I want to treat the tank before setup.
1
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1answer
25 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?
2
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1answer
31 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 ...
3
votes
1answer
32 views

What plant is this?

I was dealing with a lengthy illness and wasn't caring for my tank besides the minimums, and this plant has overgrown everywhere in my salt water tank. It's a very green plant (not sure why the ...
3
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2answers
32 views

What's the name an air-valve that automatically closes for a set period of time to allow air to pass down the line to other valves?

I hope the title makes sense. Essentially what I need is to use a single air pump to aerate multiple small tanks. To do that I can't have the first few valve/air-stones in the entire line use up all ...
7
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1answer
63 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 ...
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0answers
20 views

What is the level of effort for this fish tank? [duplicate]

One a scale of 1 to 10 (10 being metaphysically impossible) what is the level of effort to start and maintain a salt water tank with coral and fish (like the picture) for an amature? I currently have ...
1
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1answer
31 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
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1answer
49 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
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1answer
36 views

Can assissin snail carry rat lungworm?

I have two assissin snails in my fish tank. I always wondered if these snails have lungworms in them. If they do, what should do to prevent contracting the lungworm.
2
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1answer
33 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 ...
1
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0answers
70 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
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1answer
51 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 ...
8
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2answers
1k views

Would a small amount of bottled water mixed in with an aquarium harm the fish?

This is kind of urgent - I'm watching someone's dogs currently because that is what I am experienced in but they also have an aquarium. I have little to know experience with fish and I did warn the ...
3
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2answers
89 views

Are these fish eggs..and if so what should I do with them?

Are these eggs and if so what should I do with them?
5
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3answers
187 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
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1answer
45 views

Is a carbon or cartridge filter necessary in an aquarium with a simple biofilter?

I'm trying to setup my first aquarium, and in the process I've been reading all about the nitrogen cycle and properly cycling a tank to ensure there's bacteria present to work on the ammonia and ...
10
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1answer
112 views

How stressing is it for fish when someone taps/slaps their glass?

Everything I've read says you shouldn't tap an aquarium because it startles the fish, and that's bad for their mental health. I've been satisfied by that argument. As of late, my toddler has started ...
2
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0answers
40 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 ...
2
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0answers
36 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
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1answer
48 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 ...
3
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0answers
323 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?
2
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0answers
28 views

Green water after refilling dry tank with no fish

Several months ago, I moved to new city and had to drain my 20-gallon tank and give away my fish. The tank sat empty (aside from the gravel) for several months. Last week, I decided to fill it back up,...
7
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1answer
72 views

How can I remove waste from a tank with fry?

I have surprise fry in one of my tanks (I've counted 8 or 9 so far). I've removed all the adults into a separate tank, so the fry won't be eaten. I have apple snails in the tank as well. These ...
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votes
1answer
100 views

Can I use a toilet flush valve as a water change system?

I want to know if I can use a flush valve as part of a water change system. I could pair this with the floating thing that automatically fills up the tank, and this can also act as an overflow, so I ...
5
votes
1answer
32 views

Plants for dirty/algae ridden goldfish aquarium

I have a 20gallon/70litre freshwater aquarium with two comets now about 2inches each. The aquarium gets dirty with algae over the glass and all the plants very quickly after cleaning. This is nothing ...
2
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0answers
28 views

Completely Self Sustaining Aquatic Environment in a Sealed Jar

I recently got the idea into my head to create an entirely self sustaining aquatic environment in a (large) sealed jar. I'd like to include: A layer of soil and gravel at the bottom A large number ...
5
votes
1answer
71 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 ...
1
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0answers
15 views

Is my female guppy pregnant? About how far along if so. I just bought her a week ago [duplicate]

I purchased this female guppy about a week ago and I think she’s pregnant. If she is how far along do you think she is? Is it true they will eat all of their babies?
1
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1answer
65 views

Planted Nano Aquarium Experiment

Material several 750ml cylindrical glass containers: with and without top cap different types of substrates: gravel (small to mid-size grains), sand and fertilized soil for aquarium (neutral Ph) ...
4
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1answer
44 views

What are normal pH fluctuations, and what could be causing extreme fluctuations?

I measured my pH last night. One tank was <6.2. Another, >7.4. And the last one was 6.8. This morning, about 12 hours later, they're all measuring <6.2. I've added nothing but food to the water ...
2
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0answers
28 views

Air pump selection

I'd be really thankful if anyone who owns any of the air pumps mentioned in this article https://fishtankclub.com/aquarium-air-pump/ could tell me which one is the best, from either personal ...
5
votes
1answer
131 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 ...
-2
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1answer
192 views

Is my tank overstocked with Goldfish?

Is this tank overstocked? There are many baby Goldish and a couple of adults (some not visible in the dark area). According to some people it should be OK, others say that goldfish need 40gal (80l) ...
2
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0answers
31 views

Is the way I moved my fish to a new tank ok?

Yesterday I got a new tank, I upgraded from a standard 10 gallon tank to a 29 gallon. The ten gallon was over populated so I decided to try and move my fish over as soon as I could. The ten gallon ...
2
votes
2answers
559 views

Help. A common goldfish living in 3 gallon tank

My wife got a goldfish from our pre-school. It came in a "fishbowl" the size of a large coffee cup and a tiny ziplock with fish food. It was severely stressed: fins clamped at his side, sunken belly, ...
1
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1answer
31 views

Can spider habitat be repurposed to be used as an aquarium? [closed]

Can an aquarium which was used originally for a spider habitat, be repurposed for creating a fish habitat? Is there any particular way it should be cleaned, if it can be?
3
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2answers
77 views

Need help choosing a chiller

Given that I live in a very hot place where the temperatures get extremely hot (especially during the summer) and I have a 55 gallon tank with a few angelfish, an aquarium chiller is highly necessary. ...
4
votes
1answer
64 views

Can I Use Rainwater to Generate Reverse Osmosis Water for Fish?

I currently use half Reverse Osmosis (RO) water, half tap water & dechlorinator for my aquariums (probably closer to 75/25) but it takes a lot of water to generate enough RO to do water changes ...
3
votes
1answer
62 views

How many pets can I keep in an aquarium?

I recently got a 5.5 gallon fish tank and am curious about the quantity of animals I can have in the tank. I currently own six fish. I don't know their proper names, but I own one bottom feeder fish(...
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0answers
32 views

When is my Platy fish due? [duplicate]

I just got my female Platy yesterday along with a male and she is pregnant, but I don’t know for how long? I did some research and it looks like her stomach has squared off, but I don’t know if she ...
5
votes
2answers
202 views

Is there a way to repair apple snail shell damage?

My snails have damage on their shells. I think they had a calcium deficiency, and ate each other's shells to make up for it. I've changed their diet, and things seem to be getting better. Now I'm ...
4
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2answers
46 views

How do I read my new tropical fish thermometer?

I bought some last minute items for our tank before we started to get any fish, and one of them was a thermometer. We didn't look at it closely until we got home, and then realised we had no idea how ...
4
votes
1answer
218 views

What is the best way to clean soil substrate in my aquarium?

I recently set up a tank for a Betta sorority (I'm letting it cycle till we have everything) and as a substrate we have dirt. I was under the impression we just clean it like sand using a wider gravel ...
2
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2answers
254 views

I think my Betta has dropsy but I'm not sure?

I'm really worried about my dragon scale Crowntail Betta. I realised that in the last couple of weeks he has had a bump, like in the picture, on his body on both sides. He has started to curl his ...
3
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0answers
72 views

Betta has a large black spot [duplicate]

My Betta has a large black spot on him and I don't know if I should be concerned about it or if it's just a natural birth mark I don't think it is but I can't find anything online about ITV so I need ...
1
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0answers
41 views

Which light is good for aquarium turtles, UVA, UVB, UVC? [duplicate]

In continuation of my question Do aquarium turtles require basking everyday? I will purchase a UV bulb for turtles but which one should I purchase UVA, UVB or UVC? How much distance should I keep ...
2
votes
2answers
110 views

I'm wanting to have a female Betta sorority and Corydras- would that be over crowding?

I have a 3ft tank, it's been cycling for about a week so far. We want to have a female Betta sorority(at least 5 females) and at least 2 bottom feeders (Corydras). Would this be considered ...