Tunze Coral Gum Instant 112g (4.23 oz)
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Tunze Coral Gum Instant: Fast, Reliable, Reef-Safe Frag Mounting
Tunze Coral Gum Instant is the go-to adhesive for reef keepers who want secure coral placement without the mess. Whether you’re building a full aquascape or just securing a few frags, this reef-safe epoxy handles it with ease.
Why Tunze Coral Gum Instant Stands Out
Setting up a reef shouldn’t feel like assembling Ikea furniture underwater. That’s why Tunze designed this adhesive to save you time and eliminate frustration.
Key Benefits of Using Tunze Coral Gum Instant
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Quick Set Time
No more babysitting coral frags while epoxy cures. This gum sets fast—so you can move on. -
Strong, Flexible Bond
Once cured, it can handle heavy pieces and slight movement. Perfect for both frags and large rock work. -
No Nasty Smells
Say goodbye to that chemical stink. This formula is completely odor-free. -
Coralline Color Finish
It cures to a natural purple hue, blending seamlessly into your reef. -
Won’t Stick to Fingers
Tunze keeps the mess to a minimum, unlike some other adhesives that leave you glued together like a bad arts and crafts project. -
100% Reef Safe
Safe for fish, corals, inverts—basically everyone in your tank.
How Tunze Coral Gum Instant Helps Your Reef Thrive
When you're mounting coral or building your aquascape, reliability matters. Coral Gum Instant bonds fast and holds firm. That means fewer frags tumbling off rocks mid-week, and less time fiddling with toothpicks and rubber bands.
Whether you're a seasoned reefer or just getting your feet wet, this is one of those tools that makes everything easier.
Perfect for New Builds or Quick Fixes
Whether you're:
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Mounting new frags after a big coral haul,
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Fixing a displaced rock structure, or
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Rebuilding after a rogue urchin rearranged your tank...
Coral Gum Instant helps you get back to reefing without delay.
Available Sizes
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4.23 oz (112g) — Ideal for frag racks or smaller builds
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14.11 oz (400g) — Best for aquascaping or larger reef structures
Tunze Coral Gum Instant FAQs
What’s the difference between this and super glue gel?
Super glue works best for tiny frags, but lacks strength for larger pieces. Coral Gum Instant holds heavier loads and shapes easily to rock surfaces.
Can I use this in a running tank?
Yes—absolutely. It’s reef-safe and works both in and out of water.
How long does it take to fully cure?
It begins to set in minutes and fully cures in about 2–3 hours depending on water flow and temperature.
Will it work on vertical rock faces?
Yes. Because it’s moldable and tacky, it adheres well to angled or vertical surfaces.
Does the cured color actually look like coralline?
Yes. It dries to a natural purple that closely matches common coralline algae, helping it blend with your reef.
Tunze Coral Gum Instant Is a Game-Changer for Reef Setup
No-fuss, no-smell, and no slippage. This adhesive earns its spot in every reefer’s toolbox. If you’re looking for a reliable solution to secure coral without sticky fingers or frustration, Coral Gum Instant is the clear winner.
Tunze Coral Gum and More to See
- More Tunze products to see from Care Panes to Nanostream Pumps
- Frag supplies to build a coral colony
- Stick your corals to frag racks with ease with these epoxies and glues
- Our tank builder tool let's you build it your way!


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