Product: 2HR Aquarist APT SKY PLUS (APT SKYPLUS)
Category: Remineraliser / GH booster for freshwater aquariums
Manufacturer: The 2Hr Aquarist (Singapore)
Form: Powder

Description:
APT SKY PLUS is a highly concentrated remineraliser for freshwater aquariums using RO or soft water. It raises general hardness (GH) without affecting NPK values. Unlike APT SKY, it moderately raises KH to ~2 dKH and buffers pH to 7.2–7.6. Suitable for tanks with guppies, mollies, snails, and hardwater-preferring plants. Approximately 3x more concentrated than standard remineralisers.

Ingredients:
- Calcium (Ca): 16.6%
- Magnesium (Mg): 3.5%
- Boron (B): 5 mg/L
- Copper (Cu): 1 mg/L
- Iron (Fe): 0.05%
- Manganese (Mn): 13 mg/L
- Molybdenum (Mo): 0.01 mg/L
- Zinc (Zn): 8 mg/L
- Seaweed extract: <1%

Dosage:
- 3.5 g (5 ml) per 60 litres → +12 ppm Ca, +3.5 ppm Mg, +2.5 dGH
- Standard starting dose with RO water: 15 ml (10.5 g) per 60 litres
- Dose at water changes based on the volume of water replaced

Effect on water parameters:
- GH: raises
- KH: moderately raises to ~2 dKH
- pH: buffers to 7.2–7.6
- NPK: no effect

Safety: Safe for shrimp, fish, and plants at recommended dosage

Comparison with APT SKY:
- APT SKY — no effect on KH or pH; for tetras and softwater plants
- APT SKY PLUS — moderately raises KH; for guppies, mollies, snails

Available sizes: 70 g, 150 g, 350 g, 700 g