The 2Hr Aquarist APT 3 Size:500ML Reef Advantage Strontium is a

Reef Advantage Strontium is a highly concentrated (30

With built-in controller

Add 5 mL (1 tsp / 1 cap) per 10 U

so it is recommended that this be tested regularly

making it an excellent choice for both novice and experienced aquarists

The 2Hr Aquarist APT 3 Size:500ML Reef Advantage Strontium is aArtful Intelligence. Compared to conventional fertilisers (largely developed pre 2000s for 'fish tanks' with simpler hardy plants): 3X more concentrated for demanding species (in terms of total soluble elemental fertiliser per ml) 2X more nitrate limiting for richer colours (in terms of the relative ratio of nitrogen vis a vis other nutrient per ml) Dose 3ml per 100L daily. The Standard 300ml Pack comes with a calibrated pump. 1ml per press. Lasts