Seachem Silicone Sealant is aquarium-safe silicone for sealing and repairing glass aquariums and for building or bonding glass and many decorations. Once cured it's completely non-toxic and safe for fish, plants, and invertebrates — the right product for a leaking seam, a DIY tank or sump, or fixing hardscape and backgrounds in place. Available in clear and black.
Good to Know: Use only aquarium-rated silicone like this — hardware-store silicones often contain mildew-resistant additives that are toxic to fish. Black is the classic choice for hiding seams and giving a clean, professional look (and a sense of depth); clear is best for invisible repairs. Surfaces must be clean and bone-dry, and cured silicone needs to fully set (typically 24–48 hours) before water contact.
How to Use: Clean and dry the glass, apply a smooth bead, tool it neatly, and let it cure fully before filling. For a leak repair, remove the old silicone completely first for a lasting seal.
Inventory Accuracy
If this item is at low stock, or you are ordering all or almost all of our current inventory, there may be an inventory discrepency. We will contact you about any issues as soon as possible.
Order Processing
Please allow 24 to
48 hrs to process your order. Expect an
email within 48 hrs to let you know your order is on your way.
Store Pickup
If you choose “Pickup
in Store” at checkout, an email will be sent when your order is ready for
pickup. Orders can be picked up during
store hours, see our home page for our current hours. The pick up address is 6637 Easton Rd,
Pipersville, PA 18947
Domestic Shipping Rates
Shipping charges, if
any, for your order will be calculated and displayed at checkout.
