The Water Change Guide For EVERYONE (#1 Key to a Healthy Aquarium)

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‎ How often should you do water changes on your aquarium? We made a high-level water change flow chart for fish keepers who need help figuring out their tank maintenance frequency, and the internet had some divided opinions. Cory explains more in-depth how water change schedules depend on many factors: the fish and plant stocking levels, your tap water's parameters, tank size, primary goals for the aquarium, time and energy limitations, etc.
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WHO WE ARE
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At Aquarium Co-Op, we focus on your aquariums. We specialize in freshwater tropical fish, aquatic plants, and the overall betterment of the freshwater fish keeping hobby. Our goal is to help you with your first pet fish and graduate you to an advanced aquarium hobbyist. If you'd like to take it to the next level, subscribe to Aquarium Co-Op and check out our weekly videos.
Cory McElroy is employed by Aquarium Co-Op LLC. He also owns Aquarium Co-Op LLC. Therefore, all content is sponsored by Aquarium Co-Op.
#Aquariumcoop #Aquariumfish #Fishtank

[@AquariumCoop]

What advice would you give to a friend on how often to change their water?

[@bsdoweidt]

Cory about 7 years ago someone gave me an aquarium that was abandoned in a barn and half full. We had no idea that there were even fish in the muddy thick water. I went to KZbin to figure out how to save these fish and I found your channel. It has changed my life. In the 7 years I have become a fish nerd. I had 21 tanks at one point but now I’m just down to 13 tanks with most 20 gallons or less. I have asked you questions through the years and even gotten you personally responding. I want to thank you so much for giving me the knowledge and confidence to keep fish properly. Good fortune to you, your staff and family.

[@Sabriel3632]

I think one of the most toxic traits in this hobby is the “fish police” mindset. I love watching videos of fish keepers in other countries and see what they are doing. I think it’s exciting there are multiple ways to have happy fish and healthy tanks!

[@kens3dandaquatics]

Everyones water is different but once a week works for me (I have 7 tanks and 20 breeding grow out tanks)

[@HappyBuddhaBoyd]

Cory, I watch your videos and agree with you 90% of the time. On the issue of water changes, I completely get irritated at those who blindly say you must change your water. I have had many tanks and RARELY do any water changes. If you have proper filtration, and by that I mean to say your bioload is 1/4 or less than the filtration recommendations... then you will never need to do water changes. Water changes will add stress to the fish, and tend to cause imbalances in water parameters.

[@taz6122]

NEVER, unless YOU caused parameters to get out of whack!

[@chrismgd01]

Everyone’s ecosystem is a little different. Just have to monitor your water and do what’s best for your situation. Watch your actual tank, if your plants and fish are thriving then you are doing it right. It’s still important to know your numbers and test, but treat the tank, not the numbers.

[@jrthao916]

I say whatever you been doing don’t change it. Once a week every 2 weeks, and so on. Unless something goes south then yes do that water change if necessary.

[@clarence0075]

Personally, I do 50% water change once a month. What I was told to do thirty years ago I stuck to it...💪🏾💪🏾

[@user-bw5xf3yr3m]

I will simplify it put a lot of plants in it,4to5 inches substrate and a small stock of fish and you don’t ever need to water change. Feed the plants ferts if the fish aren’t creating enough ammonia.

[@fredgandolfi2356]

Cory, your patience with the internet astonishes me. You have such High EQ. Your advice is a role model: strictly for consideration, trying to be helpful and also with humility. We have ALL killed fish.

[@gryffbirb]

I do a water change weekly just to keep a schedule, it works for me, but I know that in a more practical sense, that when certain things are too high are when to do them. It just works for me because I have mental health issues so consistency is key.

[@scrotusmaximus3043]

I've had 2 stable planted tanks going now for 6 years. One a 20 the other a 75. Thick gravel sand beds, higher plant to animal ratio. The big one needs maybe 2 changes a year at best, usually a top off suffices. I personally think it mimics rainfall and the fish love it.

[@tinadorminy4086]

Thank you Cory for always trying to teach us! I love how you use relatable things make the information understandable. You are a gift!

[@B.Colby107]

Great content and love how your so dedicated to teaching people about aquariums and giving advice on keeping them up kept

[@AJBAdventures]

Thanks for staying Humble Cory 👌 advice like this will help out the newbies no end 👍

[@MelodieRose727]

Always enjoy your perspective and your thoughtfulness towards the beginners in the hobby. You gave me the confidence to be proud of keeping guppies, and I’m deeply grateful. ❤

[@Nellykir]

BIG THANK YOU, for providing so many educational videos and articles! I am a newbie at planted aquariums and only had betas and tetras in the past. Planted aquariums make this hobby a completely different ball game! You’ve helped so much on my journey by educating about it. Thank you!

[@angelaatwood6667]

Very helpful video! Thank you for putting this information out there to help people who are trying to get started. I’ve been keeping fish for over 10 years, but I feel like my fish keeping has definitely improved when I found your channel. I started following your videos back in 2019.

[@kawikasmith4089]

Just got into fish keeping and I greatly appreciate this and the past couple videos with the recommendations!