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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.

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0 nitrates on betta tanks

5gallon-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- currently seeding with established ...
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0answers
11 views

Distilled Water in Fresh water tank [duplicate]

My home has v hard water so we add salt, a no no for fresh water aquariums. I tried using water direct fm the well but water looked really bad in a few days so I started the tank with distilled water. ...
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45 views

How can I reduce the smell of the water?

I have 35 gallon tank on which I do a 50% water change every Sunday. Within 2 - 3 days, however, it starts smelling of fish. I don't have any external filtration or air stones just an internal filter....
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1answer
27 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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0answers
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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
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 ...
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0answers
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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 ...
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30 views

Fin rot or fin tearing on betta :(((? [duplicate]

This is my betta Moo He is bqsically my little soul in a fish body Started him off in a gallon filtered tank after getting him in a "betta home ready to go" which was a basic mason jar with gravel ...
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3answers
120 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.
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Freshwater Cycle Questions - Nitrite spikes and Fish

I have a 4 gallon aquarium (Biorb Halo) that has been cycling for about four weeks. Unfortunately, when we started down this path, we were not aware of cycling. We followed the directions included ...
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23 views

Is it safe to add medication in a fish tank if there is no sick* fishes?

My water conditions aren't the best, yet, my fishes are doing their best so far. I want to put a fungus and fin rot remedy in the fish tank but none of them have it (at least I don't think so). Two-...
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my betta is a teaser

my betta is teasing my neons. he chases them to the bottom of the tank then the top, then to the bottom again. then he flares and swims away, while my neons hide in decoration caves. i have 9 neons ...
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3answers
31 views

Filtered water for my fish tank

My kitchen tap is filtered with a pentek 20 micron filter which reduces chlorine taste and odor (completely removes chlorine taste) it is a granular activated carbon filter.my question is can I use ...
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1answer
27 views

How often to clean fish tank with bottom feeders

We have a 29 gallon fish tank with 3 snails 3 shrimp and 3 catfish. We also have moon fish that I read like to eat algae. We have had the tank a couple of weeks and it looks really clean. I also ...
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0answers
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Kindly help me choosing right silicone from my mentioned list

I am facing some challenges and need your help and advise. In my country, unfortunately, I don't find Aquarium safe sealant except 2 types. Only what I have seen in local stores are DAP and Loctite ...
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1answer
51 views

How to move a plant aquarium, to another house, city?

I have a an aquarium with normal glass, in the next couple of months we move to another city. Detail Size of the aquarium is 90x40x30, it has so many plant, that I use CO2 capsule, and filtration. I ...
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2answers
56 views

what could be the impact of unwashed aquarium sand?

I got lazy and didn't clean my aquarium sand what bad can happen ? This is what I used gravel link on amazon. So far everything is good.
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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 ...
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1answer
69 views

My koi has an odd scale that my be infected but I can't tell??? How do I fix it?

I saw it this morning and started researching because I am dealing with an ich outbreak due to recent overcrowding. It hasn't changed or gotten worse but I don't know if it's infected or a disease. If ...
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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 ...
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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. ...
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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 ...
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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 ...
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0answers
30 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.
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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?
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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 ...
3
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1answer
36 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 ...
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2answers
35 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
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 ...
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0answers
21 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 ...
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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
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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 ...
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1answer
43 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.
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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 ...
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0answers
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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 ...
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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 ...
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2answers
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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 ...
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2answers
92 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?
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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
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1answer
53 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 ...
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1answer
119 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 ...
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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 ...
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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 ...
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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 ...
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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?
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0answers
34 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,...
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1answer
85 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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1answer
105 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 ...
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1answer
39 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 ...
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0answers
31 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 ...