K2AQUA 25 Alder Cones for Aquariums Water Treatment Natural Botanicals Shrimp and Fish Tanks Blackwater Freshwater Tank Safe Tannin pH Regulator

RICH IN TANNINS FOR FISH HEALTH: Black alder cones naturally release tannins that improve water quality, support fish health, and help in early-stage disease prevention. 25 alder cones IDEAL FOR BREEDING & SPAWNING TANKS: Helps protect roe and nourishes alevin by binding proteins in water; perfect for sensitive breeding environments. SUPPORTS NATURAL PH BALANCE: Gently lowers pH and softens water; effects depend on tank setup and may vary based on substrate and water hardness. SHRIMP & INVERTEBRATE SAFE: Offers natural antibacterial and antifungal benefits without harming delicate tank inhabitants like shrimp or crayfish. SIMPLE APPLICATION OPTIONS: Add cones directly to the tank or place them in the filter, where they sink quickly and show effects in 1–2 days; alternatively, make a “cone brew” by steeping them in boiling water, covering the container, cooling it, and pouring the liquid into the aquarium.