
NilocG ThriveCaps Root Tabs (60-count)
$17.85
Complete root tabs at a value price: slow-release nitrogen phosphorus potassium plus micros, shrimp safe. A cheaper, EI-style alternative to Seachem's tabs for heavy root feeders.
Pros
- Complete formula root caps — slow-release macro and micro nutrients including nitrogen phosphorus potassium
- Includes chelated iron and trace elements for strong root growth
- Easy dosing — push a cap into the substrate; 60 caps last a big tank a long time
- Shrimp safe and gentle, with no algae bloom because it stays in the substrate
Cons
- Lower-profile brand than Seachem, and a slightly lower owner rating
- Feeds roots only — add a liquid for water-column feeders
Score breakdown
Specifications
| NPK | Complete (N-P-K) |
|---|---|
| Micronutrients | Trace + chelated iron |
| Iron Content | Chelated iron |
| Formulation | Slow-release root cap |
| Dose Rate | 1 cap per ~10 gal |
| Dispenser | Insert by hand |
| Frequency | Every 1-2 months |
| Phosphate | Included |
| Invertebrate Safe | Yes (shrimp & snails) |
Alternatives

$28.99 · 90 / 100A
The best all-in-one for a low-tech planted tank: a complete formula with macro and micro nutrients dosed from a pump dispenser. One weekly dose covers nitrogen phosphorus potassium plus chelated iron and trace elements.

$23.94 · 91 / 100A
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.
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