APT Sky

If you have softwater or use RO water, then simply add 15ml per 60L.

If you have hardwater or are unsure, obtain a GH reading using any common test kit. You can also read your local water report as we describe here.

Use the SKY Dosage Calculator (below) to determine dosage. For the very first dose, Water Volume = tank’s water volume. GH Reading is your tank’s GH level.

Subsequently, during water change, Water Volume = Volume of new tap water added. GH Reading = tap water GH level.

One way is to first mix APT SKY in a small container with some water and add the milky solution into the tank.

Or you can simply add APT SKY powder directly into the tank. It is OK if it covers the plants.

Playtime

Plants have conflicting softwater / hardwater requirements.

APT SKY removes the hassle of having to choose between softwater and hardwater plants. For softwater tanks, it boosts shrimp health and reproduction.

The catch? It does require Softwater or Reverse Osmosis (RO) water to begin with. At the moment, there is no easy way to make Hardwater ’Soft’.

HARDWATER / SOFTWATER 101

Precision Matters

Conventional ‘RO remineralisers’ raise GH but almost all inadvertently alter NPK values.

Most add an excessive amount of Potassium, for example. This in turn interferes with optimal fertilisation.

APY SKY adds Calcium, Magnesium, trace minerals and natural seaweed extract, in a way that uniquely leaves NPK intact.

Smart Savings

As a GH booster, APT SKY is ~ 3X as concentrated as conventional remineralisers. Each 3.5g / 5ml per 60L adds 12ppm Calcium and 3.5ppm Magnesiumm, raising GH by 2.5 dGH.

Did we mention that it is super-soluble, non-caking and just a joy to handle?