Clean, Happy Water for Your Fish
Couldn't load pickup availability
A simple way to keep your fish tank fresh and clear.
This easy-to-use 100ml clarifying agent helps keep your aquarium water clean and comfy for your fish. Just add it to your tank, and it gets to work reducing impurities so your fish can swim in a healthy, sparkling home. Great for beginners and seasoned hobbyists alike.
A small bottle with a big impact on your aquarium’s water quality.
✔ Keeps water clear and inviting
✔ Helps support healthy fish
✔ Simple for daily or weekly use
Use as directed for your tank size. Store in a cool, dry place and keep away from children and pets.
We are proud to offer duty-free, reliable, tracked shipping— delivered to your door in over 200 countries worldwide!
Below you can check our average shipping times:
Domestic USA Shipping: 2-9 business days
US & Canada: 7-18 days
Europe: 7-18 days
Europe Plus*: 8-30 days
Australia, New Zealand: 7-18 days
Hong Kong, Singapore: 7-18 days
Rest of the world: 8-30 days
*does not include processing times up to 2 business days or longer in peak periods
Primarily we ship out from fulfillment centers in the United States, Eastern Asia and Western Europe. If the item you've purchased is out of inventory in your nearest location, we'll send it directly from our production lines at the same delivery times as stated in our shipping section.
How often should I use this water purifier?
Most hobbyists add it during regular water changes or when the tank looks a bit cloudy.
Helps your tank look bright and welcoming by reducing impurities.
Creates a cleaner environment that supports fish well-being.
Just add the solution and let it work—great for busy aquarium owners.
An easy way to maintain water quality during routine tank upkeep.
Works well in many freshwater setups and fits into any care routine.
A friendly boost for cleaner aquarium water.
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Basic water clarifying | ||
| Designed specifically for aquariums | ||
| Easy daily or weekly use | ||
| Supports fish health | ||
| Consistent cleaning results | ||
| Convenient 100ml size | ||
| Great for freshwater tanks | ||
| Simple care routine |
Yes, it works alongside most aquarium filters to help keep water clean.
No, it simply helps clear the water by reducing impurities.
Yes, it can be used in planted tanks when used as directed.
Many tanks start looking clearer within a short period after adding it.
Yes, it’s helpful when starting a new aquarium to keep water looking fresh.
No, you can add it directly to the tank with fish inside.
Clearer water often means a fresher-smelling tank environment.
Use an amount that matches your tank size, following general aquarium guidelines.
Yes, it may be used carefully in simple aquaponics setups when following directions.
