Seachem Flourish tabs – 10 fertiliser tablets

Seachem Flourish Tabs are root fertilizer tablets for planted aquariums that are fed through the substrate. They suit keepers who want to supply nutrients to rooted plants without adding phosphates or nitrates to the water column, and a single pack of ten is sized for a 150 x 60 cm substrate.

Why it matters

• The tablets contain no phosphates or nitrates, the nutrients most often linked to algae growth.
• The formula lists potassium, calcium, magnesium, iron, manganese, zinc, copper, cobalt, molybdenum and boron, plus protein hydrolysates, which together cover the micronutrients rooted plants need.
• Nutrients are released slowly as plant roots act enzymatically on the tablet, so they reach the root zone over time instead of all at once.
• The tablets do not change pH. In very soft or unbuffered water they have a mildly acidic effect, similar to peat.

Specifications

• Brand: Seachem
• Model: Flourish Tabs, 10 pcs
• EAN: 000116050500
• Weight: 0.1 kg
• Coverage: substrate of 150 x 60 cm per pack of ten
• Dosing: one tablet per 10-15 cm² of gravel
• Replacement interval: every 3-4 months
• Ingredients: potassium chloride, calcium chloride, copper sulfate, magnesium chloride, iron gluconate, cobalt sulfate, magnesium sulfate, manganese sulfate, boric acid, sodium molybdate, zinc sulfate, protein hydrolysates

What it works with

The tablets are intended for planted freshwater tanks with a gravel or sand substrate, where they are pushed into the bed and reach the roots. Per the dosing guide, the pack of ten covers a 150 x 60 cm bed. Smaller tanks need proportionally fewer tablets, and the placement rule of one tablet per 10-15 cm² applies to any bed size.