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12 votes

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

Don't panic, it's probably okay! The key thing here is that you caught the error and asked the question. I'll cover both bases here and try and explain a few things (forgive me if you already know ...
Henders's user avatar
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5 votes
Accepted

Why do my Glofish Skirt tetras stay on surface after 30% water change?

When fish goes to the surface of the water there is some thing wrong, like the lack of oxygen or the presence of poisonous substances in the water. The water test you are using is not reliable and it ...
trond hansen's user avatar
  • 19.6k
5 votes

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

One way to do this is to get an extra aquarium heater and a large container. Set the heater to the same temperature as your tank and let the water slowly heat up overnight. By doing it this way, you ...
trond hansen's user avatar
  • 19.6k
4 votes

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

First, as Henders says, this is almost certainly not an issue at all. But I would continue to use tank water to thaw the krill from here on out. In fact, I'd go a step further: you can put the tank ...
Jason DeVito - on hiatus's user avatar
4 votes

Aquarium water becomes overly acidic very quickly

If you're experiencing sudden drops in PH after a water change, run an experiment by filling a bucket with tap water. Test the PH immediately after filling and then again the next 24 and 48 hours. If ...
Stacy Fakename's user avatar
4 votes
Accepted

Axolotl nitrate levels high- more frequent water changes?

Water changes will indeed reduce nitrate levels within your tank and with 80ppm you'll definitely want to reduce that as soon as you can. You could increase the percentage of your water changes, but ...
Henders's user avatar
  • 5,125
4 votes

Is the filter change necessary?

No, you do not need to change the filter material. But what you need to do is remove the charcoal and replace it with new filter foam (filter sponge). The charcoal is only needed if you are removing ...
trond hansen's user avatar
  • 19.6k
4 votes

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

To answer the question, "Can I?" the answer is probably, "Yes." It would physically work to remove water and automatically replace it. But, there is another question hidden here, "Should I?" And the ...
Richard C's user avatar
  • 1,374
3 votes
Accepted

Betta and geothermal water

No, water conditioner will not work in this water. What you need to do is use the cold water. Fill the containers with tap water, add the water conditioner and let it stand overnight so it gets heated ...
trond hansen's user avatar
  • 19.6k
3 votes
Accepted

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

So, I'm going to assume you're curing/cycling the rock in the display tank, correct me if I am wrong here. Assuming so, I would definitely do a water change. And I think your concerns are spot on. As ...
Jestep's user avatar
  • 3,093
3 votes

Could my gravel be causing my tank to be cloudy?

What are the differences between the tanks? If the cloudy tank has fake plants in it and the others have real plants. You add a little salt to the real plant tanks. Water softerns in houses for well ...
Dosvita's user avatar
  • 61
3 votes

Axolotl nitrate levels high- more frequent water changes?

Test your tap water for nitrates to be sure that isn't contributing to your problem. And yes, more frequent water changes can help with keeping nitrate levels down. The addition of ghost shrimp can ...
wastelander's user avatar
3 votes

How to change which water conditioner I'm using

You simply stop using one and start using the other; the only thing you need to do is to follow the instructions. To be totally safe do not change all of the water at once; do partial water changes so ...
trond hansen's user avatar
  • 19.6k
3 votes

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

It depends. This very much depends on how you do your water changes. For me, I make RO water and store it outside (which means it's cold). Then I add hot tap water and a dechlorinator solution to ...
Henders's user avatar
  • 5,125
3 votes

Is the filter change necessary?

The filter sponge is where the beneficial bacteria live which help to take ammonia, turn it into nitrite and then finally convert it into nitrate. These bacteria can also live in the substrate (gravel,...
Henders's user avatar
  • 5,125
3 votes

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

Theoretically, yes Why theoretically? Well, because it relies on a number of other factors too. For example, you need to make sure that there is no chlorine or chloramine in the water because this ...
Henders's user avatar
  • 5,125
2 votes
Accepted

Red fin-like protrusions from gils

Just to clear up the confusion: the "red protrusions coming out from the bottom of their gills almost like a second pair of fins" is indeed a second pair of fins. They were just translucent ...
Elmy's user avatar
  • 33.2k
2 votes

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

I live in Germany. The water quality is measured here in "Härtegrad". In our village we have 40° in the water from our water pipes. Like this site declares, is this 712 ppm (p-arts p-er m-illion of T-...
Allerleirauh's user avatar
  • 6,007
2 votes

Acceptable temperature shock for aquarium water changes

I use my thermometer in the tap until it's within 1 degrees of the tank water. If your doing a 50% water change and your tap is 1 degrees different, when it blends with the tank water it would only be ...
Elijah's user avatar
  • 21
2 votes

Acceptable temperature shock for aquarium water changes

I manage to keep mine to 1-2 °C temperature change when doing up to 50% water changes. That is, the new water is warmer than the existing, and I add cold until it's at least within 1-2 °C, ...
djsmiley2kStaysInside's user avatar
2 votes
Accepted

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

The plants will produce oxygen which normally goes into solution. However, if the water is well oxygenated, not all of the oxygen will be able to go into solution, and gas bubbles will be created. As ...
Mick's user avatar
  • 1,421
2 votes

Why do my Glofish Skirt tetras stay on surface after 30% water change?

This sounds very much like chlorine poisoning, if only because the effect took hold so rapidly. The behaviour can be similar for ammonia poisoning, but I wouldn't expect ammonia poisoning to become a ...
Tom W's user avatar
  • 236
2 votes

How often to clean fish tank with bottom feeders

How often you need to clean the gravel and the filter material is dependent on the bioload of your tank. The bioload is the number of animals living in your tank plus the amount of food you feed your ...
trond hansen's user avatar
  • 19.6k
1 vote

How often to clean fish tank with bottom feeders

Partial water changes are enough if your water quality is good. Substrate cleaning and glass cleaning are not necessary if your tank is doing well. It would be only for cosmetic reasons, for example ...
Manuki's user avatar
  • 953
1 vote

How often to clean fish tank with bottom feeders

I think cleaning is a personal choice. But water changes are important for a healthy tank. I once had a 55 gallon tank that I changed 2 gallons each day (for reasons not related to the aquarium). It ...
blacksmith37's user avatar
  • 1,844
1 vote

How can I remove waste from a tank with fry?

In my experience with guppy fry, I didn't have any issues vacuuming around them (in a 20 gal planted tank). I just have a simple siphon vacuum and got it running out of the tank, then "paused it" by ...
selene's user avatar
  • 290
1 vote

Could my gravel be causing my tank to be cloudy?

If you did buy the gravel/sand where you did buy your tank it is probably safe but if bought it at a garden center or at other sources where decoration sand/gravel is sold there might be problems as ...
trond hansen's user avatar
  • 19.6k
1 vote

Should aquarium overflow maintain a certain level of water

It looks like you are missing the stand pipe for the drain. A common design out there is the durso standpipe. You can make one yourself from PVC pipe or buy one from their website. There are other ...
Mr. Horse's user avatar

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