Buy Now, Pay Later
As low as
$6
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Jun 17
Recently Viewed
Features
- GROWTH TREATMENT: Seachem Flourish Tabs are growth stimulating tablets for plant roots which contain essential trace elements, amino acids, and vitamins.
- VITAMINS: Seachem Flourish Tabs are rich in iron, manganese, magnesium, calcium, potassium, inositol, choline B12, biotin, and other factors that have been determined to be beneficial to aquatic plant roots.
- NUTRIENTS: When inserted into the gravel, Seachem Flourish Tabs provide direct, time-released fertilization to the plants root zone. Nutrients are slowly made available through enzymatic action of the plants roots on the tabs.
- TANK USE: Insert one Flourish Tab in the gravel for every 1015 cm (46 in.) radius. A standard 10 gallon aquarium requires 6 tabs. Distribute the tablets evenly throughout the gravel bed, pushing each tablet midway into the gravel bed.
- COMPLETE MAINTENANCE: For optimal plant growth, add new Flourish Tabs to the aquarium once every three to four months. Seachem Flourish Tabs will not alter pH, however, in very soft or unbuffered water, they have slightly acidic properties similar to peat moss.
Description
Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 40 ct
Brand: Seachem
Liquid Volume: 10 Gallons
Item Weight: 0.01 Ounces
Item Form: Tablets
Unit Count: 1 Count
Is Discontinued By Manufacturer : No
Product Dimensions : 4.7 x 3.5 x 1.4 inches; 0.01 ounces
Item model number : 18799
Department : Unisex-Adult
Date First Available : August 19, 2004
Manufacturer : Seachem Laboratories, Inc.
Best Sellers Rank: #7,193 in Pet Supplies (See Top 100 in Pet Supplies) #43 in Aquarium Water Treatments
#43 in Aquarium Water Treatments:
Customer Reviews: 4.7 4.7 out of 5 stars (3,549)
Brand Name: Seachem
Manufacturer: Seachem Laboratories, Inc.
UPC: 000116050708 781163380566
Global Trade Identification Number: 08
Model Number: 18799
Manufacturer Part Number: 075434
Unit Count: 1 Count
Warranty Description: Warranty
Item Type Name: Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 40 ct
Included Components: Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 40 ct
Liquid Volume: 10 Gallons
Item Weight: 0.01 Ounces
Item Form: Tablets
Target Species: aquatic plants
Allergen Information: Gluten Free
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 17
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 40 ct
I have been using Seachem Flourish plant tabs in my planted aquarium for the past few years, in conjunction with T-5 linear fluourescent lighting and CO2 injection, and the results have been impressive. Dwarf Hairgrass and Microsword not only carpet quickly, but maintain a lush green color that really highlights these aquaria. I have several planted aquariums and add a few plant tabs to each one - every three or four months or so - after the tabs planted earlier dissolve into the substrate. So it's cheaper for me to purchase these tabs in a larger size box when possible. Seachem's 40 tab box is about three times the price of Seachem's 10 tab box, which means that you get about 10 free plant tabs per box with the larger version. I go through a few of these boxes each year, and consider plant tabs a necessity for planted aquaria that use an inert sand substrate. I also use Seachem Flourish liquid fertilizer once a week in my planted tanks, which works well in conjunction with the plant tabs. However, a word to the wise here. If you are using a high-tech lighting system which also includes injected CO2 and fertilizer supplementation of some kind, you should also consider adding a uv sterilizer to your aquarium to keep the algae and bacteria growth to a minimum. If you don't, you are probably going to find that your water is always going to be cloudy, regardless of how often you do water changes, and whatever filter media you use - including a micron filter. The reason for this is that when one uses these high tech lighting systems with CO2 and fertilizer enhancement, it usually results in far more nutrients being available in an aquarium's water column. This in turn can result in an exponential growth of bacteria, parasites, viruses and other pathogens in the water table, as well as algae, which will cause your water to become cloudy. A bad algae bloom will also result in green water so thick, that the fishkeeper will have a difficult time even seeing their fish or plants. This author has found that the best way to avoid this scenario is to use an ultra violet sterilizer, in order to remove these organisms before they can reproduce. The added benefit in doing so is that your fish will remain healthier, because there will be far fewer pathogens in your aquarium's water table. Moreover, plant growth will improve as well, because your plants will not have to compete for the nutrients in your aquarium's water column, in the way that they would if a larger number of pathogens and algae spores were present. Given that there are many UV sterilizers available for under $100 these days, this is great news for the fishkeeper. In fact, AquaTop (the only aquarium filter manufacturer on the market to do so) sells three different power filters with UV sterilizers built into them (PF-15UV, PF-25UV, PF-40UV), which are capable of uv sterilizing aquariums ranging from 15 to 40 gallons. I own one of each of these UV sterilizer/power filters, for various aquaria, and have found them to work quite well at keeping the water tables in my planted aquariums crystal clear - something I could not say prior to installing them on my tanks. UV sterilizers are no longer just for marine aquariums, since many freshwater fishkeepers are finding tremendous benefits to using them in their planted aquariums. And fortunately, there are now many affordable uv sterilizers on the market, each of which will ensure that your aquarium's water stays crystal clear, and safe for your fish and plants.
...
show more
Reviewed in the United States on February 18, 2013 by JimmyBlues
Size: 40 ct
Seachem Flourish Tabs have completely transformed my aquarium! Even though my aquarium is its earliest stage, my plants are thriving like never before, growing lush, vibrant, and healthy. The tabs are easy to use and seem to deliver nutrients exactly as promised. I’ve noticed stronger stems, deeper green leaves, and new growth almost immediately. A must-have for any planted tank enthusiast looking to keep their aquarium flourishing. Highly recommend! Pro Tip: After opening the bag and you have used all the tabs, rinse it with aquarium water and pour that over your submerged plants—this captures the dust from the tabs and gives your plants even more nutrients!
...
show more
Reviewed in the United States on August 14, 2025 by Andrew James
Size: 40 ct
These smell terrible, I guess they're probably made of fish. But my plants all seem happy, and are putting out new growth. EDIT: So it's been a year since I ordered these tabs. I have a 20 gallon and a 10 gallon planted tank, and 3 planted bowls. I use the tabs very sparingly, (3 or 4 per tank, 1 for each bowl, every few months) and I still have about half the bag of tabs left. My plants are doing great, especially the cryptocoryne (parva, lutea, and wendtii) and I've had no problems from the tabs. I find I still need to use liquid fertilizer for the health of some plants (like val and rotala, and of course floating plants) but I will definitely order these tabs again in a few months for my root feeders.
...
show more
Reviewed in the United States on September 15, 2024 by Anonymous
Size: 40 ct
I think this is working already. It’s o it been a week but my plants are improving already.
Reviewed in the United States on November 25, 2025 by Kat
Size: 40 ct
I've tried many, and prefer these. I think you'll like them too. FYI: Many plants dwindle and die in a few months without CO2. A good quality substrate is essential, but doesn't need to be expensive substrate with time release nutrients.
Reviewed in the United States on November 1, 2025 by Ruplinger
Size: 40 ct
I'd been dabbling with live plants in my aquariums with freshwater angelfish. I had picked up some amazon swords. The local seller had recommended that I put a tab every month at near the base of each plant, or place one in each of my pots to keep the plants healthy. I figured waste material from the fish in the tank + sunlight would be fine, but I did a test. I put a tab near the roots in one of my pots, and one without. I noticed that after 2 weeks, the one without the pellet had yellowing leaves near the edges. While this is sort of expected when a plant is transported into a different aquarium and new water conditions, the other plant was fine... so I put a tablet in my substrate for that plant as well. Now 2 months later, the plants are all thriving and the fish in the aquarium are as well. I was initially worried that the plant tabs might have an adverse effect on them, but they seem fine. The product works for my purposes and seems like a good value.
...
show more
Reviewed in the United States on July 3, 2023 by Vin D
Size: 40 ct
I have very hard water. No, like the ph is 8-9 and I can't even pinpoint the gh/kh because it's so high. I tried every "beginner friendly" plant I could find and almost all of them gave up in my tanks. After struggling to grow anything (other than Anubias) for about a year straight, I ordered these root tabs. I set up a 5.5gal tank about 3 weeks ago using these tabs + the ThriveS AIO liquid fertilizer and what do you know? My 6 month old Dwarf Sag has started sending out babies! My Bacopa has started thriving enough to actually trim it for once! I can even see baby Crypts poking out from the now vibrant leaves of their parent plants! All the new plants (of which I've gone overboard on buying now) are actually coming back after initial melting instead of disintegrating into nothing! I had almost completely given up on a nice planted scape, even went looking for artificial decor, before deciding to give it one more try. I am SO glad I tried these and will be a returning customer from now on.
...
show more
Reviewed in the United States on November 6, 2025 by Ashlea
Size: 40 ct
Absolutely great for growing out some of my plants. They don't float up at all once you stick them deep into the substrate like some root tabs do, and has let my vallisneria grow wild
Reviewed in the United States on March 23, 2026 Reviewed in the United States on March 23, 2026 by Adrian