NilocG ThriveCaps Aquarium Root Fertilizer for Planted Tanks, 60 Caps
Condition: New
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Availability:
In Stock.
Arrives
Nov 12 – Nov 13
At a glance
- Condition
- New
- Size
- 60 ct
- Weight
- 60 g
- Item Form
- Capsules
- Part Number
- ooi-88-5h334
- Coverage
- Medium
- Target Species
- plants
- In the box
- ThriveCaps
Features 5
- TARGETED ROOT-ZONE NUTRITION ThriveCaps deliver nutrients directly into the aquarium substrate, providing rooted aquatic plants with nutrition where their roots can access it.
- MADE FOR ROOT-FEEDING PLANTS Ideal for sword plants, Cryptocoryne, Echinodorus and other rooted aquarium plants that benefit from additional substrate nutrition.
- COMPLETE SUBSTRATE FERTILIZER Provides nitrogen, phosphorus, potassium, magnesium, iron and essential micronutrients to support healthy planted aquarium growth.
- EASY TO ADD TO YOUR SUBSTRATE Simply place ThriveCaps beneath the substrate near plant roots. The capsule format makes targeted fertilization easy without adding another liquid fertilizer to the water column.
- PAIR WITH LIQUID FERTILIZER Use ThriveCaps for root-zone nutrition alongside Thrive or another water-column fertilizer to provide planted aquariums with nutrition above and below the substrate.
Description
Targeted substrate nutrition for strong roots, healthy growth and thriving planted aquariums. All NilocG products are safe for fish, shrimp and snails when used as directed. ThriveCaps deliver targeted nutrition into the substrate, feeding rooted plants where they need it most. Pair Thrive with ThriveCaps for complete nutrition throughout the water column and root zone. A Thrive formula for every planted aquarium. Find the nutrition that fits your tank. Targeted substrate nutrition for plants that rely heavily on their roots NilocG products are proudly made in the USA by a small business dedicated to the aquarium hobby.
Specs 16
| Brand | NilocG Aquatics |
|---|---|
| Item Weight | 60 g |
| Item Form | Capsules |
| Specific Uses For Product | Aquarium,Plant Growth |
| Global Trade Identification Number | 13 |
| Brand Name | NilocG Aquatics |
| Model Number | 04 |
| Manufacturer | NilocG Aquatics |
| Number of Items | 1 |
| Item Highlight | Targeted root-zone fertilizer delivers essential nutrients through the substrate for strong, healthy aquarium plant growth |
| UPC | 702921923979 810122821113 |
| Unit Count | 60 Count |
| Part Number | ooi-88-5h334 |
| Coverage | Medium |
| Target Species | plants |
| Mixing Ratio | 100 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 12 – Nov 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Only issue is the floating caps, which is easily remedied
Size: 60 ct
The caps like to float and don't always stay buried very well. Or a couple days later, a weird greenish bubble will be coming up out of the sand. It's not a big deal, really, you just push it back down. Now I just squeeze them and bend them in half before stuffing them under the substrate. Gets most of the air out, lets a little water in easier - seems to help them stick. Otherwise, plant growth seems good so I keep using them. I also like that they're easy to open if I'm setting up a new tank I just open a few and sprinkle the innards down before I put substrate in.
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Reviewed in the United States on August 3, 2024 by Sievers
Fast acting
Size: 60 ct
Loved this stuff so I just bought some amazon swords because that's the environment my angel fish come from and the first day I brought them home some leaves were brown and frail this is my first time owning a planted tank so I did some research and apparently this plant imperticular requires root tabs because they are root feeders I bought these buried two next to each plant and omg the next day I checked on the plants off the Rip the plants were as green as could be and looked great no more brown instead a healthy looking plant fast acting ! will buy more when the time comes
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Reviewed in the United States on August 14, 2025 by Christian
Great if you bury them well
Size: 60 ct
I really like these as a supplement to liquid fertilizers. I think they really helped my new plants root. That being said, you really have to make sure they go deep into your substrate or else they will float, bloat, and explode all over your tank.
Reviewed in the United States on July 7, 2026 by thriving everyday
Would buy again!
Size: 60 ct
Has supercharged my aquatic plant growth. Just be sure to bury tabs as deep as possible to avoid clouding the water. Works great!
Reviewed in the United States on May 6, 2026 by Amazon Customer
Time will tell
Size: 60 ct
I’m in the middle of redoing my aquarium. I had pool filter sand while using seachem flourish tabs. The tabs turned my aquarium into a swampy mess and my sand smelled horribly like sulfur. I couldn’t get rid of the smell and my plants started dying back . I had to take action before all of my plants died off. I got rid of the pool filter sand then replaced the with black diamond blasting sand instead. Looks and smells better already. Hopefully these tabs are worth the while. Never using flourish tabs again, my old sand was perfect before
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Reviewed in the United States on March 19, 2026 by Austin Trevino
Great product!
Size: 60 ct
I love these capsules. They don't dissolve like the API ones while you're trying to get them in the substrate. If you pinch them and let the air out, they do not float. I've been using these about 3 months now, and have not had any come back up. My plants are all looking very healthy and green, and are growing much faster now. Also super cost effective!
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Reviewed in the United States on November 3, 2025 by Amanda
I Don't Know What Happened
Size: 60 ct
UPDATE 6/25/24. Today I decided to finally get some new plants to replace all of the other ones that died after using this product. The oily bubbles that I mentioned in my previous review took months to dissipate even with water changes and me cleaning out the canister and sponge filters. Today, I emptied about 30% of the water to make placing the new plants a tad bit easier. I'd like to mention that normally when I clean the tank, I just lightly run my fingers across the sand and poke holes with my finger deeper in the sand throughout. The tank was already clean so all I needed to do was plant today. As I inserted the plants which must have been in a lot of the same spots where I had plants before, I unearthed lots of residual fertilizer that was placed 8 months ago. I thought I had gotten rid of it but deep in the sand, there was more. I sucked out all I came across and continued to plant. 2hrs later, I went to look at my oasis and something was off. The plants were all still planted, the fish looked happy but something was off. Then it hit me. There wasn't a Panda Corey in sight and they're usually moving about on the bottom. After closer inspection, I see that one was eaten with a few remnants scattered about and 3 were dead under a piece of wood. All was well until I disturbed the old fertilizer that was buried deep in the sand. The water parameters are still good so no spike there and the larger fish appear to be fine. Also no oily bubbles so I assume that comes from the capsule and not the contents. Whatever the case, save yourself the headache and buy something else. ORIGINAL POST- I've purchased these 3 times and this last bottle was definitely different from the others. Normally you have a hard time getting them to stay down but this time they actually sank. You would think that's a good thing but no! When you push it in the sand it disintegrates on contact and you have fertilizer going everywhere. A day after using, I noticed that 4 of my plants were not looking too good. A day after that, they were almost transparent and a day after that, what was left of them was mush. When I went to remove them, they were so soft that they just fell apart and I had to catch the debris with a net. In my other tank, I only have 1 plant. I see that this ones bulb is starting to look rather mushy towards the top. I've also lost 4 fish over the last week. Seeing that the only change to the tank is the use of this fertilizer, I can only assume that it is whats killing them. I've had them for almost 2 years so these sudden deaths are quite alarming. There's also oily, thick bubbles on the surface of the water. I have been using the all-in-one liquid fert for years with no problem but I'm done with the capsules.
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Reviewed in the United States on October 26, 2023 by Meoshi
good if you can get them to stay down
Size: 60 ct
I have two tanks - one moderately planted with gravel and sand, and one heavily planted with sand. I swap plants back and forth sometimes, and the plants definitely grow better in the heavily planted, sanded tank. I figured root tabs might help the moderately planted gravel sand tank, and I have a couple of plants in the sanded heavily planted that would benefit as well. I started with Seachem Flourish tabs from my lfs just to get started. Pricey per tab. NilocG is well regarded in the community, so I checked them out. The full set of nutrients and price per tab made the purchase a no-brainer. I put several in at strategic locations throughout the larger, moderately planted tank. I quickly noticed a significant rise in nitrates. I suspected the NilocG tabs, and a bit of research confirmed this. This did not occur with the Seachem tabs. I guess that's the trade-off for a full set of nutrients. If you're dosing an all-in-one liquid fert, is a full dose of ferts necessary at the roots, or is just supplemental adequate? I don’t know. In the moderately planted, gravel and sand tank they seem okay. I have good target spots to put them; plant growth has been good lately. The ones under gravel seem to stay down under the weight, and I put it under a rock at the one sand spot. The other tank, however…I can't get the capsules to stay down at all. Ever. If my life depended on it. Can't do it. Tried every technique here including punching holes, and some others I thought up. They either erupt as I'm wrestling with them, or they will gradually crest out of the substrate. They semi-dissolve quickly, so if you don't get them in right away, trying to push them back will just rupture them. They attract my corys, though, and they're fun to watch. Besides the fun corys, about they only thing these are good for in my sanded, heavily planted tank is releasing fertilizer into the water column and jacking up my nitrates.
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Reviewed in the United States on November 8, 2022 by applejax