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1-48 of 108 results for
"aquarium PH & Alkalinity additive"
Results
Check each product page for other buying options. Price and other details may vary based on product size and color.
KORDON #35316 pH Increase Adjuster for Aquarium, 16-Ounce
4.5 out of 5 stars
443
200+ bought in past month
$9.95
$
9
.
95
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Brightwell Aquatics pH+, pH Increaser for All Marine and Freshwater Aquariums - 125 ml
4.2 out of 5 stars
141
$7.06
$
7
.
06
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API PROPER pH 7.0 Freshwater Aquarium Water pH Stabilizer 8.8-Ounce Container
4.4 out of 5 stars
2,552
700+ bought in past month
$11.19
$
11
.
19
$10.63 with Subscribe & Save discount
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Brightwell Aquatics Alkalin8.3-P - Alkaline KH Buffer Powder for All Marine and Reef Aquariums
4.5 out of 5 stars
76
$20.16
$
20
.
16
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$14.20
(6 new offers)
Brightwell Aquatics - Reef Code A - Balanced Calcium & Alkalinity System Water Conditioner - For All Saltwater Marine Fish & Reef Fish Tanks - Aquarium Water Treatments, 8.45 fl oz
4.7 out of 5 stars
59
$11.25
$
11
.
25
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Seachem Reef Buffer 250gram
4.6 out of 5 stars
576
50+ bought in past month
$7.19
$
7
.
19
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Brightwell Aquatics - Alkalin8.3 Concentrated KH Buffer Supplement - for All Marine Fish and Reef Aquaria - Aquarium Water Treatments, 17 fl oz
4.6 out of 5 stars
137
$14.83
$
14
.
83
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$9.89
(7 new offers)
API pH UP Freshwater Aquarium Water pH Raising Solution for fish,4-Ounce Bottle, Brown
4.5 out of 5 stars
3,328
400+ bought in past month
$7.08
$
7
.
08
$6.73 with Subscribe & Save discount
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API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle
4.8 out of 5 stars
35,988
5K+ bought in past month
$10.98
$
10
.
98
List:
$15.38
$15.38
$10.43 with Subscribe & Save discount
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Alkaline Buffer, 300 g / 10.5 oz
4.7 out of 5 stars
1,252
300+ bought in past month
$12.78
$
12
.
78
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$11.95
(14 new offers)
Seachem Reef Carbonate 500ml
4.6 out of 5 stars
362
100+ bought in past month
$6.89
$
6
.
89
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Tetra 77140 EasyBalance PLUS Water Conditioner, 16.9-Ounce
4.6 out of 5 stars
4,500
2K+ bought in past month
$5.99
$
5
.
99
List:
$11.49
$11.49
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Tetra EasyBalance Plus 3.38 Ounces, Weekly Freshwater Aquarium Water Conditioner (836135)
4.6 out of 5 stars
1,573
100+ bought in past month
$5.49
$
5
.
49
List:
$7.04
$7.04
$5.22 with Subscribe & Save discount
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Seachem Alkaline Regulator 250gram
4.4 out of 5 stars
118
$13.91
$
13
.
91
List:
$16.27
$16.27
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$13.20
(4 new offers)
API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
4.5 out of 5 stars
2,737
200+ bought in past month
$5.88
$
5
.
88
List:
$8.38
$8.38
$5.59 with Subscribe & Save discount
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Alkaline Buffer, 70 g / 2.5 oz
4.5 out of 5 stars
225
50+ bought in past month
$7.64
$
7
.
64
$7.26 with Subscribe & Save discount
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API PROPER pH 8.2 Freshwater Aquarium Water pH Stabilizer 7.4-Ounce Container
4.5 out of 5 stars
704
100+ bought in past month
$12.39
$
12
.
39
List:
$15.78
$15.78
$11.77 with Subscribe & Save discount
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pH Plus 4.22 Oz Aquarium pH Adjuster - Raise pH Safely - for Reef Marine and Freshwater Aquariums
5.0 out of 5 stars
1
$6.99
$
6
.
99
(
$1.66
$1.66
/Fl Oz)
$6.64 with Subscribe & Save discount
FREE delivery
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MICROBE-LIFT NITEH04 Nite-Out II Aquarium and Fish Tank Cleaner for Rapid Ammonia and Nitrite Reduction, Freshwater and Saltwater, 4 Ounces
4.5 out of 5 stars
353
300+ bought in past month
$3.58
$
3
.
58
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API PROPER pH 6.5 Freshwater Aquarium Water pH Stabilizer 8.5-Ounce Container
4.4 out of 5 stars
259
50+ bought in past month
$8.79
$
8
.
79
$8.35 with Subscribe & Save discount
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KORDON #35326 pH Decrease Adjuster for Aquarium, 16-Ounce
4.3 out of 5 stars
321
200+ bought in past month
$7.45
$
7
.
45
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Fritz Aquatics 80335 Fritz pH Lower for Fresh and Salt Water Aquariums, 4-Ounce
4.4 out of 5 stars
510
$7.98
$
7
.
98
FREE delivery
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B-Ionic Calcium Buffer System, 2-part Calcium and Alkalinity Maintenance Kit for Salt Water Coral Reef Aquarium, 64 Ounce
4.6 out of 5 stars
328
50+ bought in past month
$26.00
$
26
.
00
List:
$32.99
$32.99
Save 5% on 2 select item(s)
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API Proper pH 7.5 Freshwater Aquarium Water pH Stabilizer 9.2-Ounce Container, Proper PH 7.5 PWDR JAR-Small, Whites & Tans, 260 Grams
4.3 out of 5 stars
623
100+ bought in past month
$15.11
$
15
.
11
$14.35 with Subscribe & Save discount
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Seachem Acid Buffer 300gram
4.6 out of 5 stars
757
200+ bought in past month
Limited time deal
$11.10
$
11
.
10
List:
$15.86
$15.86
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Waterbox Aquariums Alkalinity Core Element for Saltwater Aquariums (500ml)
$11.99
$
11
.
99
(
$11.99
$11.99
/Count)
FREE delivery
Jan 13 - 21
Or fastest delivery
Jan 14 - 15
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Tetra AquaSafe Plus, 8.45 Ounces, aquarium Water Conditioner And Dechlorinator, Model Number: 46798162681
4.8 out of 5 stars
14,011
900+ bought in past month
$7.90
$
7
.
90
Typical:
$8.39
$8.39
$7.50 with Subscribe & Save discount
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Fluval Cycle Biological Enhancer, Aquarium Water Treatment, 8.4 Oz., A8349
4.6 out of 5 stars
5,661
700+ bought in past month
$9.59
$
9
.
59
$9.11 with Subscribe & Save discount
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$7.97
(5 new offers)
Fluval Sea Alkalinity for Aquarium, 8-Ounce
4.3 out of 5 stars
118
$7.99
$
7
.
99
$7.59 with Subscribe & Save discount
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Continuum Aquatics Flora Viv KH+ - Alkalinity Booster & pH Stabilizer for Freshwater Aquariums, 1000 Grams / 1Kg
4.1 out of 5 stars
81
$23.47
$
23
.
47
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Seachem Liquid Neutral Regulator 500 ml, 16.9 fluid ounce.
4.5 out of 5 stars
161
100+ bought in past month
$10.81
$
10
.
81
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Alkaline Buffer, 1.2 kg / 2.6 lbs
4.7 out of 5 stars
76
$29.53
$
29
.
53
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$27.69
(5 new offers)
Fritz Aquatics 80303 Fritz RPM Alkalinity Buffer Reef Aquarium Supplement PT 1, 1-Gallon
4.5 out of 5 stars
70
$25.87
$
25
.
87
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$25.00
(5 new offers)
API AQUA ESSENTIAL Water Conditioner 16 ounce bottle
4.7 out of 5 stars
1,780
700+ bought in past month
$15.22
$
15
.
22
List:
$22.28
$22.28
$14.46 with Subscribe & Save discount
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Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml
3.9 out of 5 stars
10
$17.61
$
17
.
61
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Reef Carbonate, 2 L / 67.6 fl. oz.
4.6 out of 5 stars
70
$26.91
$
26
.
91
List:
$41.96
$41.96
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Seachem Alkaline Buffer 600gram
4.7 out of 5 stars
534
50+ bought in past month
$21.51
$
21
.
51
$20.43 with Subscribe & Save discount
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$19.99
(8 new offers)
API ALGAEFIX Algae Control 16-Ounce Bottle
4.2 out of 5 stars
13,987
2K+ bought in past month
$15.75
$
15
.
75
List:
$23.78
$23.78
$14.96 with Subscribe & Save discount
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Aquascape Alkalinity Booster with Phosphate Binder for Ponds & Water Gardens, 1lb/ 500-G, KH/pH | 96027
3.8 out of 5 stars
15
$16.24
$
16
.
24
List:
$19.98
$19.98
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KORDON #35314 pH Increase Adjuster for Aquarium, 4-Ounce
4.1 out of 5 stars
10
$5.24
$
5
.
24
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Tetra Correct pH Tablets - 24 Tablets Total (3 Packs with 8 Tablets per Pack)
4.6 out of 5 stars
315
50+ bought in past month
$17.02
$
17
.
02
List:
$17.99
$17.99
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$15.99
(3 new offers)
Seachem Neutral Regulator 250gram
4.6 out of 5 stars
2,146
300+ bought in past month
See options
No featured offers available
$7.29
(12 new offers)
Brightwell Reef Alkalinity Part B 67.6 oz /2 liter
4.6 out of 5 stars
2
$19.02
$
19
.
02
$13.75 delivery
Jan 10 - 14
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Aquarium Water Conditioner - Naturally Detoxifies and Removes Ammonia, Nitrite, Chlorine, and Chloramine from Saltwater and Freshwater (16 fl oz.)
4.5 out of 5 stars
3,480
400+ bought in past month
$16.95
$
16
.
95
$16.10 with Subscribe & Save discount
FREE delivery on $35.00 of items shipped by Amazon
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API pH TEST & ADJUSTER KIT 250-Test Freshwater Aquarium Water pH Test and Adjuster Kit
4.6 out of 5 stars
11,707
400+ bought in past month
$12.98
$
12
.
98
List:
$18.28
$18.28
$12.33 with Subscribe & Save discount
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Monitor Alkalinity Test KIT (120 Tests) - Monitor Aquarium & aquaculture Water Quality
4.0 out of 5 stars
17
$9.99
$
9
.
99
(
$9.99
$9.99
/Count)
FREE delivery
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API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
4.5 out of 5 stars
17,574
3K+ bought in past month
$9.48
$
9
.
48
$9.01 with Subscribe & Save discount
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MICROBE-LIFT XTA16 Xtreme Water Conditioner Treatment for Aquariums and Fish Tanks, 16 Ounces
4.5 out of 5 stars
653
200+ bought in past month
$15.99
$
15
.
99
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FREE delivery
Jan 8 - 9
Only 6 left in stock - order soon.
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