F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health

This is a commonly used enrichment solution used in the culture of marine phytoplankton.High in essential vitaminsStimulates high concentration phytoplankton culturesContains no silicatesDirections: Simply add 1 ml to 1 L (2 ml to a 2 L pop bottle) of fresh saltwater at ~1.019 s.g., add your starter culture and light ~16 hours per day. A 16 oz bottle is enough for approximately 480 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use.

• GROW YOUR OWN "POD" FOOD (DOUBLE THE VALUE): Stop overpaying for small, short-lived phytoplankton bottles. Our concentrated F/2 formula is the secret to easily growing your own endless, nutrient-dense supply of live microalgae to feed your copepods, rotifers, and corals. This 16oz size offers even greater savings per liter!
• SUPER-CONCENTRATED 16oz BOTTLE: A little goes a very long way. This generous 16oz (473mL) bottle is enough to make over 470 liters (124+ gallons) of full-strength culture medium. It's the most economical way to support a thriving reef ecosystem and keep your cultures booming!
• THE PROFESSIONAL STANDARD (GUIL-LARD'S F/2): Don't guess with your fertilizer. Our solution is based on the scientifically proven Guillard's F/2 formula, containing all essential macronutrients, trace minerals, and vitamins (B1, B12, Biotin) for explosive algae growth.
• SILICATE-FREE & REEF SAFE: Brewed with pure, lab-grade ingredients. This formula is 100% silicate-free, so it won't trigger a diatom (brown algae) bloom in your display tank. It's completely safe for all reef inhabitants when used as directed.
• EASY TO USE FOR BEGINNERS: Includes clear, simple instructions. Just add 1mL per 1 Liter (or 2mL to a standard 2L pop bottle) of new saltwater, add your starter culture, and provide light. Shake well before each use.