Seachem Reef Glue
Seachem Reef Glue is a fast-curing, reef-safe cyanoacrylate gel known for broad availability and strong, quick bonds on porous frag plugs and skeletons. It holds a market-leader position because it balances reliable performance with a lower cost per tube than many specialty glues, making it the go-to economical choice for routine fragging compared with heavier-duty epoxies or premium niche formulas. Compared with putties and two-part epoxies on this list, Seachem offers the financial advantage of affordability and the technical advantage of near-instant tack for small coral work.
Fast coral set
Reef-safe formula
Fast coral set
Reef-safe formula
Review Summary
"Users report it's a fast-curing, reef-safe cyanoacrylate that reliably bonds corals and frag plugs with minimal harm; occasional complaints note brittle joints and reduced grip on very wet surfaces."
Barnacle-strong hold
Cyanoacrylate gel formula that bonds corals instantly for quick fragging
Barnacle-strong hold
Cyanoacrylate gel formula that bonds corals instantly for quick fragging
Time-Saving Convenience
Recreational Enjoyment
Skill Development & Mastery
Seachem Reef Glue is a fast-curing, reef-safe cyanoacrylate gel known for broad availability and strong, quick bonds on porous frag plugs and skeletons. It holds a market-leader position because it balances reliable performance with a lower cost per tube than many specialty glues, making it the go-to economical choice for routine fragging compared with heavier-duty epoxies or premium niche formulas. Compared with putties and two-part epoxies on this list, Seachem offers the financial advantage of affordability and the technical advantage of near-instant tack for small coral work.
Fast coral set
Reef-safe formula
Barnacle-strong hold
Cyanoacrylate gel formula that bonds corals instantly for quick fragging
Reef-safe once cured and suitable for use around corals and invertebrates
Fast coral set
Reef-safe formula
Barnacle-strong hold
Cyanoacrylate gel formula that bonds corals instantly for quick fragging
Reef-safe once cured and suitable for use around corals and invertebrates
Two Little Fishies AquaStik
Two Little Fishies AquaStik is a reef-safe, kneadable epoxy stick that adheres underwater and cures to a hard, structural bond suited for mounting larger frags and rockwork. It earns a best-in-class spot for heavy-duty applications because its putty form and underwater curing outperform cyanoacrylates for load-bearing fixes, though it is typically pricier per use than superglues like Seachem. Compared to precision glues such as Polyp Lab or EcoTech, AquaStik’s technical advantage is its versatility and mechanical strength for permanent repairs and sculpting in the aquarium.
Super tacky grip
Sets underwater
Super tacky grip
Sets underwater
Review Summary
"Hobbyists praise its moldable, reef-safe epoxy putty that holds frags well and can set underwater, with a workable working time; some find it messy to shape and slightly less tidy in finish."
Fragging favorite
Specifically formulated to set reliably underwater for in-tank work
Fragging favorite
Specifically formulated to set reliably underwater for in-tank work
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
Two Little Fishies AquaStik is a reef-safe, kneadable epoxy stick that adheres underwater and cures to a hard, structural bond suited for mounting larger frags and rockwork. It earns a best-in-class spot for heavy-duty applications because its putty form and underwater curing outperform cyanoacrylates for load-bearing fixes, though it is typically pricier per use than superglues like Seachem. Compared to precision glues such as Polyp Lab or EcoTech, AquaStik’s technical advantage is its versatility and mechanical strength for permanent repairs and sculpting in the aquarium.
Super tacky grip
Sets underwater
Fragging favorite
Specifically formulated to set reliably underwater for in-tank work
Creates a semi-flexible bond ideal for delicate branching corals
Super tacky grip
Sets underwater
Fragging favorite
Specifically formulated to set reliably underwater for in-tank work
Creates a semi-flexible bond ideal for delicate branching corals
Polyp Lab Coral Glue
Polyp Lab Coral Glue is a specialized, fast-setting coral-safe adhesive designed by a reef-focused brand to minimize stress and residue on sensitive corals. It claims a premium position due to its precision applicator and formulation tuned for fragging — curing quickly like Seachem but with a finer control that hobbyists appreciate when working on delicate specimens, albeit often at a slightly higher price point. Versus two-part epoxies and putties, Polyp Lab trades ultimate structural strength for speed, low toxicity, and exact placement during delicate mounting tasks.
Precision applicator
Low-drip formula
Precision applicator
Low-drip formula
Review Summary
"Reviewed as a top-tier, fast-setting, low-toxicity glue favored by fraggers for strong immediate bonds and minimal tissue loss; users accept the premium price for consistent performance and reliability."
Artist control
Thin, brushable consistency for precise application in tight spots
Artist control
Thin, brushable consistency for precise application in tight spots
Skill Development & Mastery
Time-Saving Convenience
Recreational Enjoyment
Polyp Lab Coral Glue is a specialized, fast-setting coral-safe adhesive designed by a reef-focused brand to minimize stress and residue on sensitive corals. It claims a premium position due to its precision applicator and formulation tuned for fragging — curing quickly like Seachem but with a finer control that hobbyists appreciate when working on delicate specimens, albeit often at a slightly higher price point. Versus two-part epoxies and putties, Polyp Lab trades ultimate structural strength for speed, low toxicity, and exact placement during delicate mounting tasks.
Precision applicator
Low-drip formula
Artist control
Thin, brushable consistency for precise application in tight spots
Very fast cure time to speed up fragging and reduce handling time
Precision applicator
Low-drip formula
Artist control
Thin, brushable consistency for precise application in tight spots
Very fast cure time to speed up fragging and reduce handling time
$12-20 CAD
EcoTech Marine Coral Glue
EcoTech Marine Coral Glue is a reef-safe adhesive from a premium equipment manufacturer, formulated to deliver consistent, low-toxicity bonds compatible with high-end reef systems. It stands out as a market leader by integrating product reliability with brand trust — positioned between economical superglues and heavy epoxies — offering hobbyists a dependable glue that pairs well with precision dosing and lighting systems from the same manufacturer. Financially it sits in the mid-to-premium tier, and technically it emphasizes chemical purity and consistent curing over raw structural strength seen in putty epoxies.
Thick gel body
Long working time
Thick gel body
Long working time
Review Summary
"Users like its reliable, marine-safe formula and easy dispensing with good bond strength for routine fragging; some consider it pricier than comparable glues with similar performance."
Marine-grade cling
High-grade reef-safe formula designed for professional aquarium use
Marine-grade cling
High-grade reef-safe formula designed for professional aquarium use
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
EcoTech Marine Coral Glue is a reef-safe adhesive from a premium equipment manufacturer, formulated to deliver consistent, low-toxicity bonds compatible with high-end reef systems. It stands out as a market leader by integrating product reliability with brand trust — positioned between economical superglues and heavy epoxies — offering hobbyists a dependable glue that pairs well with precision dosing and lighting systems from the same manufacturer. Financially it sits in the mid-to-premium tier, and technically it emphasizes chemical purity and consistent curing over raw structural strength seen in putty epoxies.
Thick gel body
Long working time
Marine-grade cling
High-grade reef-safe formula designed for professional aquarium use
Gel-based consistency fills gaps and holds heavy frags securely
Thick gel body
Long working time
Marine-grade cling
High-grade reef-safe formula designed for professional aquarium use
Gel-based consistency fills gaps and holds heavy frags securely
$18-30 CAD
D-D Aquascape Epoxy
D-D Aquascape Epoxy is a two-part, reef-safe epoxy putty engineered for long-term structural work, rock-building and permanent repairs in saltwater aquaria. It ranks as the market leader for structural applications because it cures to an exceptionally hard, load-bearing material that outperforms cyanoacrylates and single-part glues for anchoring heavy live rock, though it is typically more expensive and requires mixing time. Compared with fast-setting glues like Seachem or Polyp Lab, D-D Aquascape offers the technical advantage of durability and permanence for aquascaping projects where strength and longevity matter most.
Moldable putty
Rockwork bonding
Moldable putty
Rockwork bonding
Review Summary
"Generally considered effective for securing rockwork and heavier frags underwater with good gap-filling properties; reviewers note slower cure times and occasional difficulty matching or blending colors versus premium reef epoxies."
Durable reef-hold
Two-part epoxy putty for structural repairs and rockwork bonding
Durable reef-hold
Two-part epoxy putty for structural repairs and rockwork bonding
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
D-D Aquascape Epoxy is a two-part, reef-safe epoxy putty engineered for long-term structural work, rock-building and permanent repairs in saltwater aquaria. It ranks as the market leader for structural applications because it cures to an exceptionally hard, load-bearing material that outperforms cyanoacrylates and single-part glues for anchoring heavy live rock, though it is typically more expensive and requires mixing time. Compared with fast-setting glues like Seachem or Polyp Lab, D-D Aquascape offers the technical advantage of durability and permanence for aquascaping projects where strength and longevity matter most.
Moldable putty
Rockwork bonding
Durable reef-hold
Two-part epoxy putty for structural repairs and rockwork bonding
Cures to a durable, sandable finish suited for building scapes
Moldable putty
Rockwork bonding
Durable reef-hold
Two-part epoxy putty for structural repairs and rockwork bonding
Cures to a durable, sandable finish suited for building scapes
$15-28 CAD