Questions tagged [freshwater]

Aquariums which are freshwater-based, indicating a different maintenance style from other water types. The "aquarium" tag should normally be included with the question.

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1answer
87 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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0answers
57 views

Clear bubble forming on guppy fin

My male white guppy has a strange, bubble-filled pocket on both sides of his dorsal fin. It does not seem to be affecting or causing any pain to the guppy. He is acting normal. He is still energetic ...
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1answer
78 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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0answers
28 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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0answers
29 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 ...
2
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0answers
67 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. ...
2
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0answers
35 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 ...
2
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2answers
87 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 ...
4
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2answers
69 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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2answers
111 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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2answers
139 views

Are there any species of turtles that won't eat fish?

I have lots of pond fish, from tiny .5" (1.25 cm) minnow size to large fat goldfish. I want to add some aquatic turtles, but I found the pet store sells goldfish as food for the turtles. Are ...
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1answer
63 views

Suggest purchase a pet fish from a four-star online store?

Due to the currently pandemic we are in, one of my wife's friend gave us her fish tank and its supplies. We have two boys and they like fish. I, myself, do not like Petco or Petsmart store that sells ...
2
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1answer
60 views

Transferring my tetras and rasboras to a bigger tank

I am moving my Harlequin Rasboras, Neon Tetras, and Skirt Tetras from a (44 Liter)11.5 gallon tank to a (76 Liter) 20 gallon tank. I would like to know if I HAVE to bring the same gravel from the 11.5 ...
2
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0answers
152 views

Nitrates spike right after a 50% water change (ammonia,nitrite and nitrate readings were all zero before it)

Need help in a situation I'm a bit puzzled with. I have an established, 3 foot (90 cm) bare aquarium with discus. I have added a few plants in the last 3 months. Once the new plants have adapted to ...
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2answers
128 views

What bottom feeders are good for a 5-gallon fish tank?

I have a 5-gallon (19 liters) fish tank, with two neon tetras in it, and I am going to Petco in the future to get more fish. I was thinking about more neon tetras and some sort of bottom feeder. Are ...
2
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1answer
56 views

Goldfish with intermittent swim bladder problems

I have an 11 year old common goldfish and he has recently been having some swimming issues-but only in deep water after a few hours. He is fine in shallow water and he can swim fine for about 8-9 ...
2
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1answer
55 views

8.0ppm ammonia spike that's been “in effect” for about a week or two

OK, so I went into fish keeping way too fast with almost no knowledge. I will give a short rundown of what happened in my tank. I got a 5 gallon (19 liters) tank and a silver molly and a leopard ...
2
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1answer
72 views

Odd-sized aquarium with damaged canopy: what are my options?

I've recently come into possession of a used aquarium; while it includes all the basic parts (tank, stand, hood, and canopy), the glass canopy was dropped at some point and a chunk is missing out of ...
3
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0answers
39 views

Aquarium ammonia question

My wife and I purchased a small 5.5 gallon aquarium: Top Fin Starter Kit with a silent-stream carbon filter. We are brand new with aquariums and unfortunately didn't do our due diligence and research ...
2
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0answers
17 views

When (or If) to reseal an sump?

I bought a glass sump (intended for a fresh-water tank) 2nd hand that has clearly been put together at home. The construction looks great, but you can tell its homemade since the seal has "frayed ...
2
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1answer
58 views

If I boil tap water will it be safe for my iguana would that clear the chlorine oxide out of it

I would like to know if boiling my tap water would clean it for my iguanas
4
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2answers
51 views

Preferable flows in aquarium?

I am in the process of setting up an aquarium, and experimenting with the water flow. It's 100x40x60cm (60cm high). I employ an HMF in one of the back corners, so there is no well defined "inflow" - ...
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0answers
202 views

Why did all my goldfish suddenly die?

I have read this question, and this one, about goldfish/pond life suddenly dying. These situations are similar, but not identical to my own, and so I'm not sure whether this question is a duplicate. ...
2
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1answer
127 views

Can a shrimp be a pet?

I want to keep shrimp as a pet, but it would always be dead in about 1 or 2 days. I read lots of information and I know that it is lack of dissolved of oxygen. How to get the water full of dissolved ...
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0answers
28 views

What cleaner fish should I include with my aquarium?

I am planning on getting a 20 gallon Marina fish tank (24 inches x 12.5 inches x 16.5 inches). I have already planned on getting several species of fish for my aquarium. I am most likely getting two ...
4
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2answers
395 views

What the best way to get water up to temperature for a water change?

I'm just about to do a water change and was wondering what's the best way to get water up to the right temperature to put it back in to my tank?
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4answers
85 views

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

I am using RO water for my newly started 100 liters aquarium and it results in a pH value of 6.0 to 6.2 which is too low considering that KH is 0. In this case, I need something to raise pH (and KH ...
4
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1answer
71 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 are no shrimps in there. I filled up the tank with water from a rain collector and mixed it with some mineralised water. This was ...
3
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1answer
997 views

Why did my betta’s fins grow back curly?

I purchased my half moon about 3 months ago with some fin rot anddull color. This little guy’s fins grew back white and curly and just recently got color. Attached is the progress photos with time ...
2
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1answer
133 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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3answers
4k 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. ...
3
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2answers
651 views

Betta fish and 2 small snails

My friend’s fish tank has a betta fish and yesterday when I last saw him, he said that there are two snails in his fish tank.* I am worried about the fish in there. Do you know how to handle the ...
4
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2answers
235 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 ...
4
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1answer
52 views

Betta and geothermal water

I'm moving to a new location that uses geothermal water. Generally, when I top off/replace water for my betta, I get my water to the correct temperature, add the stress coat + to remove chemicals, and ...
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2answers
600 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. ...
3
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3answers
1k views

Can Bettas have lazy personalities?

I had a betta a few years ago who was the most active and happiest fish I've ever seen. He enjoyed hide-and-seek, watched me work at my desk, and constantly swam around his 5 gallon tank. He was a ...
2
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0answers
151 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 ...
3
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2answers
109 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?
21
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5answers
9k views

Safe for cats to drink from the aquarium?

This kitten doesn't want to drink from her own bowl but seems to prefer running water, namely the waterfall of a hang on filter. Is this safe for the kitten? The aquarium is occupied by a terrapin ...
2
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0answers
44 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,...
4
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1answer
5k views

New guppy disappeared from tank overnight

I just got a new guppy yesterday who was living a tank with a young koi, 4 tetras and one guppy. The old guppy seemed to like the new member of the tank. The next morning the new guppy was gone! I ...
6
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1answer
85 views

Plants for dirty/algae ridden goldfish aquarium

I have a 20 gallon (70 liters) freshwater aquarium with two comets, which are now about 2 inches each. The aquarium gets dirty with algae covering the glass and all the plants very quickly after ...
2
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1answer
105 views

Planted nano-aquarium experiment

Materials 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) ...
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0answers
2k views

Why is my Betta fish lying at the bottom of it's tank? [duplicate]

My male betta fish is about 1 and 3/4 years old. He is normally more active, but it's been 2 days now since he's started lying at the bottom of the tank and only coming up for air. He lives in a 5 ...
4
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1answer
375 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 ...
4
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1answer
1k views

What's wrong with my gourami? Has she been bitten, or is she ill?

I got home tonight and found my gourami injured. She's in a community tank, with, amongst others, five large male angels. I've taken her out of the tank into a hospital tank. I don't know if she ...
4
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1answer
96 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(...
3
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2answers
4k 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 ...
2
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2answers
203 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 ...
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4answers
1k views

Can a house get too hot for tropical fish and what precautions could we take?

We really want to get tropical fish but there's a problem. In the state we live in, it can get as high as low 40's °C in the summer. And worse, we don't have insulation installed in our house. Would ...