Can these be planted with a tank full of water as after thought?

Yes can be planted anytime, just push them into the gravel near the plants

They are pushed into the substrate at the roots of your aquatic plants. For dosage read the pack.

Will they work in my 17 L heavily planted Guppy baby nursery tank? It has no substrate other than java moss, stem plants & a banana plant.

I would have thought so, yes..I have a gravel bed & push one every 4 months under each plant base & they’re doing wonderfully well, I have lush healthy & thick foliage since using these tabs. I cannot say for sure as you have no substrate but I’d say give it a go. These tabs totally change the water ph though & I no longer have to battle with algae overgrowth which is another plus but be sure to change your water regularly as in my case my Angel fish’s eye went white but as long as I change the water every week he stays just fine.

Does the tab dissolve in water eventually? Or do I need to take the old tab out every 3-4 months?

You leave it in.. the plants will use it up.

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Seachem Flourish Gravel Bed Tablets, 10-Count

Product ID: 48995706

Details

Brand
Seachem
Item form
Tablets
Item weight
0.8 Ounces
Liquid volume
10 Gallons
Number of Packs
1

⏳Lasts 3-4 weeks per application

⚡Slow-release root zone delivery

🌱Micro & trace nutrient boost

Rp689231

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Description

🌿 Unlock your aquarium’s full growth potential with every tablet!

EASY APPLICATION - Simply insert tablets into gravel every 10-15 cm for even nutrient distribution.
LONG LASTING FORMULA - Each tablet feeds your plants for up to a month, reducing maintenance hassle.
TRUSTED QUALITY VALUE - Backed by Seachem’s expertise and a 2-year warranty for peace of mind.
PRECISION ROOT NUTRITION - Targets the root zone for maximum plant absorption and growth.
OPTIMIZED FOR PLANTED TANKS - Supports heavy root feeders and stem plants with essential microelements.

Seachem Flourish Gravel Bed Tablets deliver essential micro and trace nutrients directly to the root zone of planted aquariums. Designed for slow release over 3-4 weeks, these easy-to-use tablets promote robust growth of stem and heavy root-feeding aquatic plants. Ideal for 10-gallon tanks and backed by Seachem’s trusted quality, they simplify plant care while maximizing vitality.

Specifications

ASIN	B000255QLG
Best Sellers Rank	2,751 in Pet Supplies ( See Top 100 in Pet Supplies ) 4 in Health Supplies for Fish & Aquatic Pets
Brand Name	Seachem
Customer Reviews	4.6 4.6 out of 5 stars (5,963)
Global Trade Identification Number	00000116050500
Included Components	aquarium plants
Item Form	Tablets
Item Type Name	growth stimulating tablets for plant roots
Item Weight	0.8 Ounces
Liquid Volume	10 Gallons
Manufacturer	Seachem
Manufacturer Part Number	075230
Model Number	67105050
Number of Items	1
Number of Packs	1
Pet Type	Fish
Product Warranty	2 years
Target Species	Aquatic Plants
UPC	781163244851 000116050500 074994343887
Unit Count	30.0 gram

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Rp689231

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In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

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