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Questions tagged [water-parameters]

The physical and chemical aspects of an aquarium's water that affect the animals living within it. Common examples include pH, temperature, salinity, and nitrogen wastes.

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

I have a 60l freshware 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 ...
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1answer
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Does dosing a tank for sicknesses cause harm if I can't diagnose the illness?

I came home after work today to my baby guppy tank showing signs of sickness. About 50% of them are gasping for air. I just did a 50% water change, after using my master kit, and seeing that my ...
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371 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 ...
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2answers
397 views

Could my gravel be causing my tank to be cloudy?

I have several freshwater aquariums a 5 gallon, a 10g, x2 20g, a 29g, a 55g and an outdoor 300 gal pond. Aside from the pond, I started with one community tank and now have a rescue tank, a neon ...
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1answer
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Best Residential Aquarium Test kits for accuracy versus affordability

What are the the best testing strips out there for measuring PH, Ammonia, Nitrates, etc.? I would like to find something more accurate (currently using API test kits with droppers in 5 mL) It seems ...
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558 views

Reason for fishes dying

I have a 2 feet by 1 feet aquarium in which i keep about 4 to 6 fishes. I don't know why why but, whenever I keep fishes in my aquarium they die within 1 to 2 months. Initially I was recommended by ...
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474 views

Can Acid Water Fish Live In Alkaline Water?

Can acid water fish live in alkaline water? For example, my tank Ph is around 7,5 because its substrate is made of dolomite. I basically have molly and platys, but I wanna have other kind of fish. ...
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Does Juwel Cirax (ceramic biological filters) affect PH in the aquarium

Currently the water in my aquarium is having a higher PH than I want. What I wonder is if the Cirax filter (and in general biologigal ceramic filters) affects the PH value (by increasing it)? Or if it ...
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Need advice on handling a recently recovered sick betta [duplicate]

My betta girl, Arora, was sick for about seven days, only laying at the bottom of the tank. I have her in a simple tank, since bettas are soft swimmers, and currents can make them depressed from ...
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What causes a Norman's lampeye to lose the ability to move it's tail fin?

I have an aquarium with eight Norman's lampeyes (unfortunately 5 male, 3 female) and some other fish. Last Sunday I discovered that one of the Norman's lampeyes wasn't doing so well. She was nearly ...
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1answer
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Can I put chemicals in before the filter?

I'm restarting my tank. It's been down for a year. I have all the chemicals and such to get it started, but haven't bought new filters. Is it safe to go ahead and de-chlorinate the water and take ...
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1answer
603 views

High nitrate level in tap water

I'm quite new to owing fish, we have a 65 litre (14g) tank with 6 minnow, 2 danni, 2 platy and a Hong Kong plec which has been running for around 1 month. During this month I have learnt a lot about ...
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Why is my aquarium pH plummeting despite frequent water changes?

This is new. I have a well-established 75 gallon aquarium with six medium-sized blood parrot fish that I've had for years. Suddenly the pH of the water is consistently below what my testing system can ...
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1answer
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Is there a way to test the amount of dissolved oxygen in a tank?

I normally don't use an aerator for my fish tanks, but I also don't usually have my fish tanks anywhere close to being full of fish. I've set up a new aquarium recently, with the plan to have ...
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How can I reduce my need to do a water change on my turtle's habitat?

Hello turtles masters :) I have 20cm (shield) turtle in 70L of water in aquarium. As a filter I use Repti Clear F350 (276L/hour 6W). I also use ReptoFresh and ReptoSafe. Problem: Even I clean the ...
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1answer
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Temperature Range for Fancy Goldfish

I have an aquarium housing moors and an oranda. What is a safe temperature range for these fish? There seems to be conflicting information on this online. My aquarium is in a conservatory and in the ...
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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 ...
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2answers
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Why are my ammonia levels still high?

I performed a water change two days ago. My ammonia levels were at 0.25-0.5 ppm right after the water change, which one user suggested was due to the chloramine removers. However, it has been two ...
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Why did my ammonia level rise after a water change?

I have the API freshwater kit. I tested for 0.25 ppm ammonia and 40ppm nitrate. After the water change, I have 0.50 ppm ammonia and 5ppm nitrate. WHAT THE HECK? In fact right before I put water in ...
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2answers
338 views

What signs indicate good water quality for tropical fish?

What are the signs of good water quality? I want to add fish to my freshwater aquarium, and I want to make sure they have the least chance of dying.
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3answers
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When is it safe to add fish?

I have a 50-gallon wide tank and all associated materials. On November 1st, my tank had tap water chemistry (meaning 0 ammonia, 0 everything); I had just set up my tank. I added Stress Zyme by API ...
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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 ...
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How can I permanently reduce the pH level of my aquarium?

I have an aquarium with some rocks and substrate mixture, and about 15 small fishes. The pH level of the water is always high (7.6 - 8), away from the recommended value for the fishes I have. I want ...