Questions tagged [water-changes]

Questions involving the act of changing water, most often referring to aquariums.

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4
votes
2answers
81 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?
3
votes
2answers
86 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 ...
1
vote
1answer
575 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 ...
4
votes
1answer
47 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 ...
1
vote
0answers
31 views

I think my beta fish is sick, what should I do? [duplicate]

I've had my beta fish for about a year and a couple months ago I noticed its fins were turning a blackish colour and appear to look "fried" at the edges. Now my fish doesn't eat and I think its ...
8
votes
2answers
2k 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 ...
5
votes
3answers
55 views

Is the filter change necessary?

My Betta, Neptune, lives in a BiOrb FLOW 30 tank which has a spongy filter material sitting on top of charcoal pellots. I was changing it monthly but got behind and the current filter is going on 3 ...
7
votes
1answer
307 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 ...
-2
votes
1answer
149 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 ...
2
votes
1answer
422 views

Why do I see gas bubbles raising from plants after water changes?

I have a 60 l freshwater aquarium. After water changes I see plants producing gas, which raises to the top just like when I had CO2 fertilization running (currently turned off since some weeks). The ...
2
votes
0answers
95 views

How do I perform 100% daily water changes when fridging an axolotl?

I'm planning on fridging my axolotl as he keeps floating for extended periods after eating. I have read extensively how to fridge so I feel confident to do it, but I was just wondering how is best to ...
5
votes
2answers
917 views

Axolotl nitrate levels high- more frequent water changes?

I have had a young adult male axolotl (Smaug) for about a year now. Recently when testing water parameters I have found that the nitrate levels are very high (80ppm), but both nitrite and ammonia ...
2
votes
2answers
621 views

Could my gravel be causing my tank to be cloudy?

I have several freshwater aquariums of following volumes: one 5 gallon one 10 gallon two 20 gallon one 29 gallon one 55 gallon and an outdoor 300 gallon pond. Aside from the pond, I started with one ...
2
votes
1answer
326 views

Is a water change near the end of cycling dry rock a good idea

Should I do a small water change near the end of cycling my dry rock in my marine aquarium? Ammonia levels are 0, nitrites are at 0 or very well close to 0. But nitrates have been explosive over the ...
4
votes
3answers
735 views

Should aquarium overflow maintain a certain level of water

I have a 55G aquarium that I am setting up for saltwater fish, probably clownfish. It includes a custom built-in overflow to the sump. The water level in the overflow is low. Is this to be expected or ...
7
votes
3answers
22k views

Fish water becomes overly acidic very quickly

A few months ago we took over ownership of a small fish tank (with fish) from their existing owner. They had kept fish for many years without trouble, and told us that they changed the water every 2-3 ...
10
votes
1answer
295 views

My tap water is contaminated by the chemical (MCHM) leak, what do I use for water changes?

I'm in the 'Do Not Use' zone of West Virginia, so I'm affected by the MCHM CHEMICAL Leak and need to do a partial water change on a freshwater tank. Some of my fish are 16+ years old, and I don't ...
8
votes
2answers
94k views

How can I keep a very small tank well oxygenated?

First of all, I didn't have any experience on fish keeping before. But my child really wanted to have some fish, so I bought a small (0.5 gallon) fish tank. I got him two guppies and two gold fish. ...
8
votes
1answer
984 views

How often should I perform water changes in my Red-Devil Crab terrarium?

I have a terrarium of Red-Devil Crabs. The terrarium is about 70% land, 30% water. I have pea gravel underneath the Exo Terra bedding, so that it isn't touching the water. There's no airstone or ...
17
votes
3answers
1k views

How does one effectively “cycle” an aquarium?

I have read that prior to putting fish in an aquarium, one must "cycle" the tank so that bacteria that eat ammonia will produce nitrate, and nitrate-eating bacteria will make nitrite. I understand ...