Will this work to seal a few small holes in a black pond liner? The holes are on a horizontal planting shelf.

I would recommend firestone primer, seam tape and cover tape instead for the right way to patch holes in 45 mil epdm rubber.

We wouldn’t recommend it. The silicone is for sealing liner to faceplates with screws and any plumbing parts that are threaded and might need extra sealing. It can also be used in place of Teflon tape. The Pond Company

Can i build a new aquarium with this?

Yes, I think clear would be more aesthetically pleasing but this should work for a glass aquarium. I wouldn't use it for acrylic.

Will this work to seal around a Rubbermaid 100 gallon horse trough—around the rectangular piece of the bulkhead? No leak from threads

I have a 3500 Gallon Koi Pond and it sealed a couple of leaks I had in my liner very well. I was losing about 6 inches of water a day and once I found the tears in my liner I applied the sealant around the tear and pushed it into place. It has bee holding water without leaking for several weeks now so I'm thinking yes, it will hold in your application. It goes on very wet but seals to a hard surface. Good Luck.

Aquascape Black Silicone Sealant Safe For Fish 10 1 Ounce

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$55.10

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Description

🐠 Seal with confidence, protect with style!

BUILT TO BRAVE THE ELEMENTS - UV resistant and temperature tough for all-weather, outdoor or indoor use.
FAST CURING FLEXIBLE FINISH - Cures in 30 minutes with a durable, flexible seal that adapts to movement and stress.
ULTIMATE WATERPROOF PROTECTION - Seals ponds, aquariums, and water features with airtight, leak-proof bonds.
VERSATILE SURFACE COMPATIBILITY - Bonds seamlessly to metal, glass, tile, wood, fiberglass, and more for diverse DIY projects.
ECO FRIENDLY FISH SAFE FORMULA - VOC compliant and non-toxic, ensuring safety for aquatic life and green building standards.

Aquascape Black Silicone Sealant 29186 is a premium, fish-safe, waterproof silicone designed for durable, UV-resistant sealing on multiple surfaces. Perfect for ponds, aquariums, and indoor/outdoor repairs, it meets green building standards with a fast-curing, flexible formula that ensures long-lasting, airtight bonds.

Specifications

ASIN	B000N1AMY0
Brand	Aquascape
Brand Name	Aquascape
Color	Black
Compatible Material	Metal
Customer Reviews	4.6 out of 5 stars 2,151 Reviews
Global Trade Identification Number	00827807291864
Item Dimensions	5.1 x 5.1 x 27.9 centimeters
Item Form	Liquid
Item Type Name	Safe for Fish and Plants
Item Weight	0.8 Pounds
Item dimensions L x W x H	5.1 x 5.1 x 27.9 centimeters
Item weight	0.8 Pounds
Manufacturer	Aquascape Designs, Inc
Material	Silicone
Material Type	Silicone
Model	29186
Number of Items	1
Part Number	29186
Style	Compact
Style Name	Compact
Surface Recommendation	Tile
UPC	827807291864
Unit Count	10.1 Milliliters
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

N**E

Bonne qualité pour coller les joint des vitres pour aquarium

22.04.2026

M**2

Great product for sealing seams or gaps in your pond

I highly recommend this product for sealing seams or gaps in your pond. I used it around a leaky waterfall feature. It went on easily using a caulk gun and remained very flexible once it cured after 30 minutes.

25.07.2025

K**E

worked great for my 75gal!

I had to reseal the inside of my 75gallon tank, this stuff worked great! used a little under half the bottle for all the seams! sealed another 10gallon tank a few weeks later with the leftovers, it worked fine too! I let my lager tank cure for a week, and my 10gal i left dry for a few days. vinegar smell is STRONG

8.04.2026

E**S

Fast acting!

Very good product, the best I've tried thus far.

11.08.2025

D**.

Perfect

25.06.2026

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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