Root Tabs for Aquarium Plants, 5-6M Slow Release Fertilizer | Fish & Shrimp Safe

Insert 1 tab near the roots of each plant, spaced every 10–15 cm. Push fully into the substrate to avoid nutrient leaching. Replace every 5–6 months depending on plant load and growth rate. Safe for use in tanks with fish, shrimp, and snails.

eBay