Aquarium Water Tests & Treatment
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Pre-Owned · Hanna$200.00or Best Offer$9.58 shipping- Brand New · Unbranded$82.49Free shipping5 watching
- Brand New · Unbranded$82.49Free shipping17 sold
- $17.95 to $149.95Free shipping
- Brand New · Unbranded$89.98or Best OfferFree shipping51 sold
- Brand New · Seachem$6.69 to $88.99Free shipping106 sold
- Brand New$9.99 to $71.99Free shipping3 watching
- $7.29 to $84.96Free shipping
- $8.69 to $23.69Free shipping55 sold
- $12.91 to $89.97Free shipping41 sold
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- $8.99 to $20.99Free shipping28 sold
- $15.99Free shipping207 sold
- $44.99Free shipping
- Brand New · Unbranded$43.99Free shipping
- $39.99Free shipping
- Brand New$425.98Was: $588.00was - US $588.00Free shipping
- $38.49Free shipping41 sold
- $12.99Free shipping
- $10.59or Best OfferFree shipping
- $8.69 to $73.59Free shipping151 sold
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- Brand New · Unbranded$15.17Was: $40.99was - US $40.99Free shipping
- $13.49Free shipping330 sold
- Brand New · API$15.49Free shipping111 sold
- $99.98Free shipping
- $79.00Free shipping
- $18.88Free shipping
- Brand New · Hanna$35.99or Best Offer$10.86 shipping24 sold
- $62.73Free shipping
- $15.39 to $124.99Free shipping41 sold
- $8.72Free shipping16 sold
- $11.99Free shipping
- $12.95$5.95 shipping6 watching
- $9.18 to $111.68$8.54 shipping82 sold
- $15.99Free shippingOnly 2 left
- $40.00or Best OfferFree shipping
- Pre-Owned · Hanna$40.00Free shipping
- $19.95Free shipping
- Brand New · Unbranded$6.98 to $10.98$0.49 shipping58 sold
- $3.99$11.50 shipping0 bids6d 2h
- Brand New · Salifert$19.29Free shipping188 sold
- $59.99Free shipping
- $17.99Free shipping31 sold
- $25.99Free shipping482 sold
- $12.99Free shipping18 sold
- $16.99Free shipping
- $20.69Free shipping63 sold
- $7.99 to $59.95Free shipping
- Brand New · Mars Fishcare$68.59Was: $97.98was - US $97.98Free shipping44 sold
- $38.99Free shipping
- $14.99Free shippingOnly 2 left
- $15.89Free shipping
- Brand New$13.99 to $24.99Free shipping34 sold
- $62.24Free shipping
- $10.99 to $42.99Free shipping23 sold
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- $91.79Free shipping
Best selling
- $64.64 New$50.00 Used
- $11.99 New$11.00 Used
Top rated
- 100% agree - Would recommend$10.99 New
- 100% agree - Would recommend$38.99 New
Review highlights
Recommended by our customersGood product, have been using API products for years.
By 340rg
Fast and easy to use test. see all reviews
Verified PurchaseAn excellent product!
By NYzZ6LmiSPu@Deleted
It worked like a miracle! I dearly wish that I had had it prior to my ich problem. It will now be a necessary item for ... see all reviews
Verified PurchaseNo guess work!
By ktodd3200
I had a problem raising my calcium levels in my reef tank. This product raised & maintain it with 2 blocks for almost 2 ... see all reviews
Verified PurchaseAPI Fresh Water Test Kit
By procraftjeff
This test kit measure PH, Amonia, and water hardness. These kits sell for around 30 dollars at Petsmart, but you can fin... see all reviews
Verified PurchaseStress Coat+ keeps my KOI in good health!
By directshot1911
My primary use for API Stress Coat+ is to maintain a healthy slime coat on my KOI. A good slime coat on KOI reduces the... see all reviews
Verified PurchaseEffective and long shelf life
By catcatcatfish
This is the only product I trust to accurately test my aquariums. Pros: -Extremely credible, pinpoints the exact amo... see all reviews
Verified PurchaseSeaChem Safe Water Conditioner
By collectorjay1973
I honestly believe all SeaChem Products are Top Of The Line when it comes to maintaining Aquariums. Before I discovered ... see all reviews
Verified PurchaseReliable Test of KH & GH
By 1st_taisho
Easy to use test to stay on top of aquarium KH and GH levels. Fill the test tube to the level mark with aquarium water ... see all reviews
Verified Purchase
