{{ totalProductsCount }}
In cart {{totalProductsCount}} item(s)

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

Minimum search length 3 characters
{{searchQuery.text}}
{{shortcut.title}}
{{searchString}} → {{searchInCategorySuggest.title}}
{{category.title}}
{{category.path}}
AiO.lv Test kit Tetra 6in1, model 98661, 10 pcs — aquarium water test strips for pH, nitrite, nitrate, hardness, chlorine, alkalinity Similar products

Alternatives and similar models for Test kit Tetra 6in1, model 98661, 10 pcs — aquarium water test strips for pH, nitrite, nitrate, hardness, chlorine, alkalinity

Tetra 98661 4004218283725 Photo 1

Based on this product's specifications, here are some alternatives and similar models

Test kit Tetra 6in1, model 98661, 10 pcs — aquarium water test strips for pH, nitrite, nitrate, hardness, chlorine, alkalinity
Summary description: Tetra 6in1 test kit (model 98661) contains 10 test strips for quick multi-parameter analysis of aquarium water. Each strip checks six key parameters: pH, nitrite, nitrate, general hardness, chlorine and alkalinity. Designed for routine monitoring to help maintain stable water conditions for freshwater aquariums and prevent fish stress and water-quality issues.
Manufacturer: Tetra
Category: Aquarium Supplies
Back to product page →
Air stone Tetra AS 35 by Tetra — aquarium aeration stone AS 35
Tetra
Aquarium Supplies
Air stone Tetra AS 35 by Tetra — aquarium aeration stone AS 35
Delivery: 04.08.2026
4.99 €
Air stone Tetra AS 30 by Tetra — aquarium air diffuser stone, model AS 30
Tetra
Aquarium Supplies
Air stone Tetra AS 30 by Tetra — aquarium air diffuser stone, model AS 30
Delivery: 04.08.2026
4.99 €
Air stone Tetra AS 40 for aquarium aeration, compatible with Tetra APS air pumps
Tetra
Aquarium Supplies
Air stone Tetra AS 40 for aquarium aeration, compatible with Tetra APS air pumps
Delivery: 04.08.2026
4.99 €
Nylon Net Tetra FN M Size M (Tetra, model FN M) — Nylon net for aquarium use
Tetra
Aquarium Supplies
Nylon Net Tetra FN M Size M (Tetra, model FN M) — Nylon net for aquarium use
Delivery: 04.08.2026
5.49 €
Tetra FN L fish net L size, nylon net material
Tetra
Aquarium Supplies
Tetra FN L fish net L size, nylon net material
Delivery: 04.08.2026
5.49 €
Nylon Aquarium Filter Media Bag Tetra FN XL — Size XL, Nylon net material
Tetra
Aquarium Supplies
Nylon Aquarium Filter Media Bag Tetra FN XL — Size XL, Nylon net material
Delivery: 04.08.2026
5.99 €
Air stone Tetra AS 45 for aquarium aeration — compatible with Tetra APS air pumps
Tetra
Aquarium Supplies
Air stone Tetra AS 45 for aquarium aeration — compatible with Tetra APS air pumps
Delivery: 04.08.2026
5.99 €
Water conditioner Tetra AquaSafe 50 ml – aquarium water treatment solution
Tetra
Aquarium Supplies
Water conditioner Tetra AquaSafe 50 ml – aquarium water treatment solution
Delivery: 04.08.2026
6.49 €
Hose for air pump Tetra AH 50 - 400, replacement tubing for Tetra AH 50–400
Tetra
Aquarium Supplies
Hose for air pump Tetra AH 50 - 400, replacement tubing for Tetra AH 50–400
Delivery: 04.08.2026
6.49 €
Fish net Tetra FN XXL – XXL size, nylon net material
Tetra
Aquarium Supplies
Fish net Tetra FN XXL – XXL size, nylon net material
Delivery: 04.08.2026
6.99 €
Feeding Ring Tetra FR 6 — aquarium feeding ring for controlled feeding
Tetra
Aquarium Supplies
Feeding Ring Tetra FR 6 — aquarium feeding ring for controlled feeding
Delivery: 04.08.2026
6.99 €
Aquatic plant Tetra DecoArt Plant S Anacharis — live Anacharis for aquariums, small size
Tetra
Aquarium Supplies
Aquatic plant Tetra DecoArt Plant S Anacharis — live Anacharis for aquariums, small size
Delivery: 04.08.2026
7.49 €
Aquarium Decorative Plant Tetra DecoArt Plant S Red Ludwigia – artificial aquatic plant, small size
Tetra
Aquarium Supplies
Aquarium Decorative Plant Tetra DecoArt Plant S Red Ludwigia – artificial aquatic plant, small size
Delivery: 04.08.2026
7.49 €
Aquatic plant ornament Tetra DecoArt Plantastics Green Cabomba S, length 150 mm
Tetra
Aquarium Supplies
Aquatic plant ornament Tetra DecoArt Plantastics Green Cabomba S, length 150 mm
Delivery: 04.08.2026
7.49 €
Water conditioner Tetra Betta AquaSafe 100 ml — aquarium water treatment for bettas and tropical fish
Tetra
Aquarium Supplies
Water conditioner Tetra Betta AquaSafe 100 ml — aquarium water treatment for bettas and tropical fish
Delivery: 04.08.2026
7.49 €
Pre-filter Sponge Tetra EX1500 for Aquarium Filters – Tetra T305014
Tetra
Aquarium Supplies
Pre-filter Sponge Tetra EX1500 for Aquarium Filters – Tetra T305014
Delivery: 04.08.2026
7.99 €
Filter Foam Pad for Pre-Filtering Tetra EX500/700/1000 – Replacement Sponge
Tetra
Aquarium Supplies
Filter Foam Pad for Pre-Filtering Tetra EX500/700/1000 – Replacement Sponge
Delivery: 04.08.2026
7.99 €
Check valve Tetra CV 4 — inline non-return valve for aquarium plumbing
Tetra
Aquarium Supplies
Check valve Tetra CV 4 — inline non-return valve for aquarium plumbing
Delivery: 04.08.2026
7.99 €
Liquid Algae Treatment Tetra AlguMin Plus 100 ml – Tetra 100 ml bottle for aquarium algae control
Tetra
Aquarium Supplies
Liquid Algae Treatment Tetra AlguMin Plus 100 ml – Tetra 100 ml bottle for aquarium algae control
Delivery: 04.08.2026
7.99 €
{{totalProductsWishes}} {{totalProductsCompare}} {{totalProductsCount}}
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
We use cookies
Show info
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
Which cookie files we use?

The necessary technical cookies allow you to use the basic functions of the store, such as page navigation, ordering, access to secure sites and more. The site cannot function properly without these files.

Preferences cookies are used to save information that changes how the site works and looks.

Static cookies are used in order to help the sites owner understand how the users are interacting with the site.

Marketing cookies are used in order to track a users movements throughout the site in order to show interesting and relevant ads to the specific user.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.