Seachem Flourish Tabs (40-pack)
The premium root tab: a complete formula of over 15 nutrients including nitrogen phosphorus potassium, chelated iron and trace elements, tucked into the substrate for heavy root feeders like swords and crypts.
- +A complete formula for the roots — macro and micro nutrients, over 15 in all
- +Includes nitrogen phosphorus potassium, chelated iron and trace elements
- +Just push a tab into the substrate near heavy root feeders — easy dosing, no cups to measure
- +Balanced and gentle, shrimp safe, and it stays in the substrate with no algae bloom in the water
- −A 40-tab pack costs more upfront than API tabs
- −Feeds the roots only — pair with a liquid for water-column plants like stems and floaters
These are Seachem Flourish Tabs, premium substrate root tabs with a complete formula of over 15 nutrients including N-P-K, chelated iron and trace elements. You push a tab into the substrate near heavy root feeders; a 40-pack lasts a long time.
- Heavy root feeders such as Amazon swords and crypts
- Planted tanks with an inert substrate that needs root feeding
- Keepers who want a complete, low-mess tab
- Water-column plants like stems and floaters, which need a liquid
- Tanks that already run a rich aquasoil
- Anyone on a tight budget, where API tabs are cheaper
We separate what the maker claims from what independent sources confirm, what owners report, and where we are drawing an inference. We do not bench-test products.
- Complete formula, 15+ nutrients including N-P-K, calcium and magnesium
- Chelated iron and trace elements
- Insert one tab per roughly 10 to 15 square inches, every few months
- It feeds the roots only; it stays in the substrate
- Best paired with a liquid for water-column plants
- Very well rated; costs more upfront than API tabs
- The premium root tab: more complete and less messy than the budget options, and it stays put rather than clouding the water
A 40-tab pack costs more upfront but doses every few months, so cost per year is modest. Because it stays in the substrate there is no algae bloom in the water. Pair with a liquid fertiliser for a mixed planted tank.
- Feeding only roots and forgetting water-column plants
- Digging up a tab, which releases nutrients into the water
- Using in an already-rich aquasoil, which can overfeed
We do not bench-test this; the assessment synthesises the manufacturer's stated specification and aggregated owner feedback. We give gear and method guidance only. For a fish's specific health or diet needs, consult a veterinarian or an established authority.
Roughly every three months near heavy root feeders. A 40-pack lasts a typical tank a long time.
They feed root feeders in the substrate. Stem plants and floaters take nutrients from the water, so add a liquid fertiliser for them.
Flourish Tabs are more complete and less messy; API tabs are cheaper but lighter on trace elements and break up faster if disturbed.