Water Condition & Treatment

Clear and shining water makes people comfortable. The ancient world of aquarium calls the water “elegant”. The elegant water is not just transparent but appears gleaming in the eyes. Create water. Learn water. Water adds sparkle to entire lives. However, once the balance of environment is lost, water condition decays and it is hard for animal beings to live.



They are designed for softening hard water. The ion-exchange resin inside the Softenizer is stirred up with the outflowing water from the canister filter system. It effectively lowers the hardness of the water. Three sizes are available according to the size of the aquarium tank and the water quality. The appearance of working resin is beautiful visually and does not disturb aesthetic of the aquascape.

Contents /
Softenizer (with suction cup)
Ion-Exchange Resin (250ml)
One-way cock
Silicone tube
Softenizer 20 : Aquarium tank 60cm in length or less / Water with lower total hardness
Softenizer 50 : Aquarium tank 60-90cm in length / Water with slightly high total hardness
Softenizer 300 : Aquarium tank 90cm in length and above / Water with high total hardness

Softenizer 20 50 300
Diameter Article Code Article Code Article Code
Ø10mm 102-301 102-311
Ø13mm 102-302 102-312 102-322
Ø17mm 102-313 102-323

Softenizer Ion-Exchange Resin

Reusable refill of Ion-exchange resin for Softenizer. You can use this product repeatedly for a long period of time: for recovery, soak it into salt water. Please replace the resin once its surface becomes worn out and dried.

Necessary amount:
Softenizer 20 / approx 20ml
Softenizer 50 / approx 50ml
Softenizer 300 / approx 250ml

* Approximately 40ml of Resin is necessary to lower the hardness level by 1°dH of every 100L of water.
* For recovering a 100ml of resin, mix in the water with 20g of salt, and leave it for about an hour. Then replace the water and remove salt.

No Article Code Volume
1 102-331 250 ml
Drop Checker

Drop Checker

A glass-made instrument created specifically for examining the CO2 level of aquarium with simple procedure. Add some pH reagent and aquarium water to Drop Checker. Then, set it inside the tank .

* Includes a pH reagent (5ml)
* In case the reagent turns yellow from the beginning, due to the low pH value in the aquarium, the reagent color does not change even after adding further CO2. In such a case, please make a water change for raising pH level, and make sure the reagent turns blue or green before resetting Drop Checker in the aquarium.

Article Code Item
103-302 Drop Checker

pH Kit

A reagent kit for examining the base of water quality, the pH level. You can check the water quality by using this kit with or without Drop Checker. Including a pH color sample card and a measuring cup.

Article Code Item
103-303 5ml
Pack Checker Series

Pack Checker pH

With this product, it is very easy to measure the level of pH: just pump the water into a tube. Most water plants and tropical fish prefer soft and slightly acidic water. Please check the pH level before releasing the fish into the aquarium and during regular water changes.

* Measurement range / pH5.8-8.0
* Do NOT use for marine aquarium

No Article Code Item
1 103-201 Pack Checker pH 5 packs

Pack Checker TH

TH (Total Hardness of water) is the sum of some multivalent cations, such as calcium ions, in water.  When the TH level is high, the color of new leaves starts fading and the growth of the plants is disturbed. Please always check the level of TH after setting new stones or gravels in your aquarium.

No Article Code Item
1 103-202 Pack Checker TH 5 packs

Pack Checker NH4

Ammonium is from organic matter, such as unconsumed fish food or excretion of fish, and it changes to a high toxicity ammonia when the water quality becomes alkaline. Ammonium disappears once biological filtration works normal. This product helps you to know when the biological filtration starts working properly.

No Article Code Item
1 103-206 Pack Checker NH4 5 packs

Pack Checker NO2

Nitrite formed from ammonia is harmful to aquatic creatures, such as fish and shrimp. The level of NO2 in the tank goes up right after the initial set-up of the aquarium and when the biological filtration becomes unstable. Excellent for examining the condition of the filter system.

No Article Code Item
1 103-203 Pack Checker NO2 5 packs

Pack Checker NO3

When the biological filtration of the aquarium is working properly, nitrite quickly decomposes into harmless nitrate. It becomes an important nutrient for the water plants. Yet, the excess amount of nitrate in the water promotes algae growth.

* Do NOT use for marine aquarium

Article Code Item
103-207 Pack Checker NO3 5 packs

Pack Checker ClO

The amount of chlorine residue in tap water varies by locality and temperature. It is very important to check if the water is neutralized properly on regular basis. A close observation of the CIO level is recommended during winter time when the amount of chlorine residue is higher.

Article Code Item
103-205 Pack Checker ClO 5 packs

Pack Checker COD

The organic matter from the leftover fish food and excretion of fish contaminates the water, and also causes the algae and germs inside the aquarium. COD is one of the indicators which tells the degree of water deterioration. When the aquarium is dirty or has too many fish inside, we see the high level of COD.

* Do NOT use for marine aquarium

Article Code Item
103-204 Pack Checker COD 5 packs

Pack Checker PO4

Phosphate, produced from leftover fish food and wastes, is one of reasons of algae growth. Therefore, there is a possibility Phosphate is accumulated in the aquarium due to the overpopulation of fish or too much feeding. Please check the PO4 level, and make a necessary water change.

* Do NOT use for marine aquarium

Article Code Item
103-208 Pack Checker PO4 5 packs
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