0

Your Cart is Empty

2Hr Aquarist APT SKY

Discover new possibilities with SKY-boosted water.
Enables shrimps and hardwater plants to thrive together with softwater plants*.
Replenishes all vital minerals in RO/ RODI water with no negative altering of NPK, KH or pH.

Each 3.5g / 5ml per 60L adds 12ppm Calcium and 3.5ppm Magnesium (+2.5 dGH)
Recommended: 15ml per 60L of RO/RODI water.

*To grow softwater plants, RO/RODI water recommended if tap water measures >2 dKH

#Mini70g

This size is not available in US and Europe.

Why

APT SKY resolves the key conundrum of how to increase water hardness (specifically as a GH booster) without altering NPK values (which interfere with the calibrated ratios of fertilisers) and KH (where higher values are not favoured by most commercial aquatic plants).

Ingredients

Ca (Calcium): 21.5%
Mg (Magnesium): 5.4%
B (Boron): 7mg/L
Cu (Copper): 1mg/L
Fe (Iron): 0.06%
Mn (Manganese): 17mg/L
Mo (Molybdenum): 0.01mg/L
Zn (Zinc): 9mg/L
Seaweed extract <1%

the weather at your command

Are bacteria affected due to low pH/KH in aquasoil tanks?

Are bacteria affected due to low pH/KH in aquasoil tanks?

July 25, 2025 7 min read

Aquariums using aquasoil in soft water countries naturally have very low pH values. This usually sparks some concern among the aquarist crowd which worry that such a low pH will affect livestock or bacteria health in the tank. In this article we will examine how low pH tanks function, and whether one should increase the KH above a certain value.

Read More
Hard water vs Soft water plants decoded

Hard water vs Soft water plants decoded

July 18, 2025 5 min read

What exactly is hardwater or softwater? How do I know if my tank has hardwater or softwater. How do I raise GH without raising KH or vice versa?
Read More
pH, KH, GH, TDS - Introduction to basic water parameters

pH, KH, GH, TDS - Introduction to basic water parameters

July 17, 2025 13 min read

pH, KH, GH, TDS - Introduction to basic water parameters in the context of a planted aquarium. Which parameter makes an impact in the aquarium? Do pH swings really affect fish? Do you need to buffer your KH to a few degrees in order to have a successful aquarium? We examine all these questions and more in this article.

Read More