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Rated 4.8 out of 5 stars
704
$10.98 Chewy Price
($0.69/fl oz) Price per Unit
$15.38 List Price
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Rated 4.7 out of 5 stars
323
$31.76 Chewy Price
($0.04/ea) Price per Unit
$50.48 List Price
$30.17 Autoship Price

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Rated 4.6 out of 5 stars
116
$19.99 Chewy Price
($0.63/fl oz) Price per Unit
$24.99 List Price

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Rated 4.4 out of 5 stars
137
$5.12 Chewy Price
($0.64/ea) Price per Unit
$4.86 Autoship Price

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Rated 4.7 out of 5 stars
142
$36.99 Chewy Price
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$48.99 List Price
$35.14 Autoship Price

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Rated 4.6 out of 5 stars
116
$36.99 Chewy Price
($2.11/lb) Price per Unit
$67.99 List Price
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Rated 4.6 out of 5 stars
147
$13.83 Chewy Price
($0.14/ea) Price per Unit
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Rated 4.6 out of 5 stars
65
$5.79 Chewy Price
($2.90/fl oz) Price per Unit
$7.99 List Price
$5.50 Autoship Price

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Rated 4.8 out of 5 stars
379
$21.79 Chewy Price
($0.65/fl oz) Price per Unit
$20.70 Autoship Price

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Rated 4.5 out of 5 stars
144
$6.93 Chewy Price
$9.99 List Price
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Rated 4.6 out of 5 stars
96
$12.29 Chewy Price
($0.77/oz) Price per Unit
$17.18 List Price
$11.68 Autoship Price

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Rated 4.8 out of 5 stars
454
$8.48 Chewy Price
($1.06/fl oz) Price per Unit
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Rated 4.7 out of 5 stars
75
$11.84 Chewy Price
$16.78 List Price
$11.25 Autoship Price

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Rated 4.8 out of 5 stars
46
$15.99 Chewy Price
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$19.99 List Price

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Rated 4.5 out of 5 stars
140
$8.99 Chewy Price
$9.99 List Price

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Rated 4.5 out of 5 stars
92
$6.18 Chewy Price
($0.39/fl oz) Price per Unit
$14.49 List Price
$5.87 Autoship Price

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Rated 4.6 out of 5 stars
27
$7.69 Chewy Price
($0.46/fl oz) Price per Unit
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Rated 4.5 out of 5 stars
64
$5.32 Chewy Price
($1.58/fl oz) Price per Unit
$6.29 List Price

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Rated 4.6 out of 5 stars
364
$84.77 Chewy Price
($0.43/gl) Price per Unit
$99.69 List Price
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Rated 4.4 out of 5 stars
55
$8.73 Chewy Price
($0.18/ea) Price per Unit
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Rated 4.6 out of 5 stars
197
$17.38 Chewy Price
($1.09/fl oz) Price per Unit
$24.38 List Price
$16.51 Autoship Price

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Rated 4.9 out of 5 stars
76
$9.32 Chewy Price
($1.11/fl oz) Price per Unit
$10.89 List Price
$8.85 Autoship Price

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Rated 4.5 out of 5 stars
121
$9.98 Chewy Price
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$13.98 List Price
$9.48 Autoship Price

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Rated 4 out of 5 stars
42
$15.99 Chewy Price
($1.00/fl oz) Price per Unit
$19.99 List Price

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Rated 4.3 out of 5 stars
292
$8.59 Chewy Price
($8.59/ea) Price per Unit
$10.85 List Price
$8.16 Autoship Price

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Rated 4.5 out of 5 stars
32
$12.20 Chewy Price
$16.99 List Price
$11.59 Autoship Price

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Rated 4.6 out of 5 stars
65
$11.32 Chewy Price
($1.35/fl oz) Price per Unit
$16.99 List Price
$10.75 Autoship Price

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Rated 4.5 out of 5 stars
90
$3.99 Chewy Price
($0.50/ea) Price per Unit
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Rated 4.7 out of 5 stars
405
$69.07 Chewy Price
($0.35/gl) Price per Unit
$81.29 List Price
$65.62 Autoship Price

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Rated 4.5 out of 5 stars
40
$3.09 Chewy Price
($0.39/fl oz) Price per Unit
$7.99 List Price
$2.94 Autoship Price

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Rated 4.8 out of 5 stars
219
$15.49 Chewy Price
($0.97/fl oz) Price per Unit
$22.78 List Price
$14.72 Autoship Price

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Rated 4.1 out of 5 stars
217
$15.18 Chewy Price
($0.95/fl oz) Price per Unit
$23.78 List Price
$14.42 Autoship Price

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Rated 5 out of 5 stars
1
$14.48 Chewy Price
($7.24/fl oz) Price per Unit
$16.99 List Price
$13.76 Autoship Price

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Rated 4.5 out of 5 stars
38
$34.99 Chewy Price
($0.07/ea) Price per Unit
$50.48 List Price
$33.24 Autoship Price

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Rated 4.6 out of 5 stars
187
$13.87 Chewy Price
($0.83/fl oz) Price per Unit
$15.59 List Price
$13.18 Autoship Price

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Rated 4.5 out of 5 stars
54
$10.58 Chewy Price
($1.33/oz) Price per Unit
$14.88 List Price
$10.05 Autoship Price

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Aquarium & Fish Tank Water Care

Keeping your aquarium water clean and balanced is one of the most important parts of fishkeeping. Fish tank water care helps support a healthy environment for your fish by managing things like chlorine, ammonia, and pH levels. Whether you're cycling a new tank or maintaining an established one, having the right tools on hand can make water care a lot easier.

  • Water conditioners: Help remove chlorine, chloramine, and heavy metals from tap water
  • Ammonia control: Useful for managing ammonia levels and keeping water safe
  • pH adjusters: Help create stable water conditions for different fish species
  • Bacterial supplements: Support a healthy nitrogen cycle by adding beneficial bacteria
  • Testing tools: Make it easy to check water parameters like ammonia, nitrite, nitrate, and pH

A solid aquarium water care routine can prevent a lot of common problems down the line. Testing your water regularly and making small adjustments as needed can go a long way in keeping your tank clean and your fish feeling their best.

Frequently Asked Questions about Aquarium & Fish Tank Water Care

How do you maintain water in an aquarium?

Start by using a water conditioner when adding tap water, then test regularly to keep an eye on things like ammonia, pH, and nitrate levels. Partial water changes and a good filter also help keep conditions stable.

How often should I change fish tank water?

Most tanks do well with a partial water change once a week, usually around 10 to 25 percent. It can vary based on your tank size, how many fish you have, and how much waste builds up.