Seachem Reef Plus 500 mL — Reef Supplement Vitamins & Amino Acids

Seachem Reef Plus 500 mL is the ultimate full-spectrum reef supplement—vitamins, amino acids, and trace elements all in one liquid formula. Unlike incomplete vitamin supplements that only provide vitamins and minerals, Reef Plus also includes the essential amino acids (cysteine, proline, glycine, alanine, lysine) that your corals, fish, and invertebrates use daily for metabolic processes, pigment formation, and tissue growth. The result: more intense coloration, improved polyp extension, and overall aquarium vitality visible within a few weeks of regular use.

The 500 mL format represents the best use-cost ratio for a medium-sized reef aquarium dosed twice a week, with several months of autonomy.

Full Spectrum Formula — What Reef Plus Contains

Reef Plus is formulated to replicate the nutrient composition of natural tropical reef waters. Its formula contains:

• Vitamins: vitamin B12, vitamin C (high concentration), thiamine (B1), inositol, choline
• Trace elements: iodide, bromide, molybdenum, iron, manganese, cobalt, potassium and other essential constituents
• Amino acids: cysteine, proline, glycine, alanine, lysine — directly assimilable by corals and invertebrates

The formula is nitrate and phosphate free , allowing for safe dosing even in systems with strict parameters (SPS aquariums, ultra-low nutrient systems). The pH is balanced at 8.3, in accordance with the parameters of a healthy reef aquarium.

Dual Use — Aquarium and Food Soaking

Reef Plus is concentrated enough to be used as a soaking bath for frozen foods . A few drops in your mysis or shrimp cube instantly enrich the food with vitamins and amino acids before feeding — a particularly effective technique for stimulating the appetite of picky fish and for convalescent specimens.

Seachem Official Usage Protocol

• Aquarium dosage: 5 mL (1 capful) per 80 liters, twice a week
• Soaking food: 1 mL in approximately 15 mL (1 tablespoon) of thawed frozen food
• Ozone: Turn off the ozone during each dosing — ozone quickly destroys the beneficial organic compounds in the product
• Skimmer: a reaction from the skimmer is normal; the 2x/week protocol takes into account losses due to skimming.
• If used with Reef Trace: alternate dosing (different days) to avoid overloading with common trace elements
• Storage: Refrigerate after opening — shelf life 6 to 12 months in the refrigerator

Yield of the 500 mL format

• 200-litre aquarium: approximately 5 months of use at a rate of 2x/week
• 400-litre aquarium: approximately 2.5 months of use at a rate of 2x/week
• Food soaking: hundreds of possible uses with 1 mL per meal

Reef Plus fits into the Seachem dosing program alongside Reef Complete (calcium) and Reef Carbonate (alkalinity) for a balanced and growing reef.