Tropic Marin K+ Elements 500ml

Tropic Marin K+ Elements is a liquid trace-element supplement delivering essential cationic minerals such as strontium, barium, iron, manganese, copper, zinc, nickel, chromium, cobalt and boron — all vital for healthy coral growth, colouration and skeletal development. Used alongside Tropic Marin A-Elements, it helps maintain a complete and balanced trace-element profile in reef aquariums without altering salinity or water chemistry. The formula is phosphate-free and free from chelates or unnatural solvents, making it safe for soft, LPS and SPS corals as well as other invertebrates. 

Each day add 1 ml per 100 L of aquarium water (or up to 2 ml/100 L in heavily stocked tanks) — the liquid form is ideal for manual dosing or via dosing pump. Regular use helps prevent trace-element deficiencies, ensuring corals retain vibrant colours and grow consistently.