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Beginner & Advanced Aquarium Care

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Water Care

In this section, you’d find helpful guides that focus on teaching you how to take proper care of your aquarium water. Remember that, essentially, we keep water and not fish in our tanks. Whether it’s green or cloudy water you’re having issues with – you’ll find the answer in this dedicated category.

Can water conditioner accidentally kill aquarium fish?

December 30, 2022December 30, 2022 by Momchil

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Using over-the-counter solutions as a quick fix might be convenient, but it does come with some risks.

Why is Your Fish Tank Cloudy After a Water Change?

December 30, 2022December 18, 2022 by Momchil

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Walking by your tank and seeing it suddenly become murky can be disheartening.

Can you really use spring water for your fish tank?

November 28, 2022November 28, 2022 by Momchil

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The survival of our pet fish partially depends on the number of minerals present in their environment.

Can you use tap water for a fish tank?

December 30, 2022October 13, 2022 by Momchil

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In the eyes of outliers, fishkeeping seems pretty straightforward.

Beneficial Bacteria in the Aquarium (Beginner’s Guide)

October 14, 2022September 30, 2022 by Momchil

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I’m not exaggerating when I say that there’s a key element an aquarium needs to have in order to be a safe environment for pet fish.

Why are there bubbles in my fish tank? (6 Explanations)

October 14, 2022May 30, 2022 by Momchil

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A while back, after taking a look at my beloved aquarium, I got quite concerned as I witnessed an unusual sight.

What is the white fuzzy stuff in my fish tank? (Is it White algae?)

December 29, 2022May 13, 2022 by Momchil

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Generally, keeping a freshwater aquarium is rewarding, but occasionally you’d face some surprising obstacles.

Why is my turtle tank water turning green? (Cause & Fixes)

October 14, 2022April 18, 2022 by Momchil

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So you thought that you’re doing everything right to keep your pet turtle’s habitat clean.

How to Lower High Ammonia Levels in Your Aquarium?

December 30, 2022March 21, 2022 by Momchil

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It’s always concerning when your fish tank’s water parameters aren’t within the desired range.

When to Add Pet Fish to a New Tank?

October 14, 2022March 15, 2022 by Momchil

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The world of fishkeeping is saturated with contradicting information that can easily intimidate a novice aquarist.

How to deal with Planaria worms in your aquarium?

December 13, 2022June 11, 2021 by Momchil

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Some types of white flatworms can appear in your fish tank seemingly out of nowhere and make you freak out.

3 Types of Tiny White Worms Found in a Freshwater Aquarium

December 30, 2022April 22, 2021 by Momchil

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Keeping aquatic pets can have its disturbing side.

What to Do When There’s a Dead Fish in Your Tank?

October 3, 2022September 2, 2020 by Momchil

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Here’s a scenario for you: you do your due diligence as an aquarist and enjoy a happy aquarium for some time.

Why Do Fish Die or Get Stressed After a Water Change?

December 30, 2022August 24, 2020 by Momchil

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Cleaning your aquarium and maintaining it in good shape is essential for its long-term success.

4 Best UV sterilizers to CLEAR an aquarium

December 29, 2022May 13, 2020 by Momchil

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Updated: 04/2022.
You’ve heard about the power of the ultraviolet spectrum, but should you trust your fish tank with it?

The 4 Best Aquarium Bacteria Supplements & Starters

October 3, 2022April 14, 2020 by Momchil


Updated: 05/2021.
The main aim when cycling your new fish tank is to make sure the aquarium is habitable.

Does Boiling Water Remove Chlorine (and Chloramine)?

October 14, 2022March 7, 2020 by Momchil


Natural Chlorine removal methods eventually become of interest to anyone who keeps aquarium fish or just dislikes the taste of chlorinated water.

What Nitrate Levels Are Acceptable in a Saltwater Aquarium?

October 14, 2022February 25, 2020 by Momchil

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Knowing what to do when pollutants build up in your fish tank is key to maintaining healthy water quality for your aquatic pets.

What Causes High Nitrate in a Freshwater Aquarium?

October 14, 2022January 29, 2020 by Momchil

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Everything else could be going well in your freshwater fish tank until the nitrate levels shoot up, after which things take a nosedive.

Nitrate Poisoning in Aquarium Fish: Causes and Cures

October 17, 2022January 21, 2020 by Momchil


If you notice that your pet goldfish is grotesquely curled up then it’s definitely time to reassess the water quality in your aquarium.

How to Keep a Turtle Tank Hygienic & Clean?

December 6, 2022January 18, 2020 by Momchil

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Aquatic turtles are one of the messiest aquarium pets and no one wants their hobby to turn into a chore.

Best LED Refugium Lights to Grow Massive Chaetomorpha

September 1, 2022November 14, 2019 by Momchil

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Updated: 09/2022.
As far as natural solutions for saltwater fish tanks go, there’s not much that is cooler than refugiums as a form of aquarium filtration.

Cloudy Aquarium Water: Why it Happens and How to Clear it?

December 30, 2022October 16, 2019 by Momchil

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So you’ve just set up your new fish tank and nothing seems out of the ordinary.

How to get rid of the green water in an aquarium (algae bloom)?

December 30, 2022May 18, 2019 by Momchil

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You’ve got your new aquarium started and it’s been going great; your fish seem happy, active and everything seems like smooth sailing from here on out.

How to Lower Nitrite Levels in a Freshwater & Saltwater Aquarium on Time?

December 4, 2022September 7, 2018 by Momchil


Nitrite can cause significant damage to aquatic inhabitants or even kill them.

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ABOUT MOMCHIL & AQUANSWERS

Momchil has had his fair share of aquarium care. He has made MANY mistakes throughout his fishkeeping journey and thus learned A LOT. In Aquanswers, Momchil shares knowledge about freshwater and saltwater home aquariums with the people from his community.

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