ReefH2O INSTA-SET CA Accelerator (2 fl oz) | Instant Cure for Coral Frag & Reef Glue

ReefH2O INSTA-SET CA Accelerator is the spray that turns a slow CA glue cure into an instant bond — perfect for coral fragging, aquascape rock bonding, and any underwater glue job where you need it set now. A quick spray on the cyanoacrylate joint kicks off polymerization in seconds instead of minutes, so your coral or rock stays put while you move on. 2 fl oz spray bottle. Browse our full corals or shop all saltwater supplies.

What It's For

If you've ever glued a coral frag to a plug and watched it shift, slide, or fall off because the CA glue took too long to set — INSTA-SET solves that. Spray it onto the freshly-glued joint and the cyanoacrylate kicks off into a hard bond in seconds. Same trick works for aquascape rock bonding, frag plug-to-mount attachments, and any DIY work where you're using superglue and don't want to babysit it. Reef-safe in normal usage volumes.

Features

How to Use

Apply CA glue to your coral frag or rock as usual. Quickly spray a light mist of INSTA-SET onto the glue joint from a few inches away. The bond will cure to hardness in seconds rather than the usual 30–60+ second open time. Place and hold the frag for a few seconds, then release. Use sparingly — a light spray is all you need; over-application doesn't speed things up further and wastes product. Avoid spraying directly into the water column.

Specifications

Recommended Pairings

• Browse our live corals for fragging
• Browse saltwater supplies for the rest of your reef build

FAQ

Will it kill my corals?
Used as directed — a quick spray on the glue joint, not into the water — INSTA-SET is reef-safe. Don't dump the bottle into the tank, and don't drench corals directly with the accelerator. The accelerator's job is to speed the CA reaction, not to coat anything.

Do I have to use this brand's glue with it?
No. INSTA-SET works with most standard cyanoacrylate (CA) glues — including hobby gels, liquids, and reef-branded frag glues. If your glue is a CA-based formula, the accelerator will work on it.

How long does the bottle last?
You only need a light spray per joint, so a 2 oz bottle handles a lot of fragging sessions. For a shop or heavy hobbyist, expect months of use; for casual fragging, well over a year.

Can I use it for non-reef projects?
Yes — it's a general CA accelerator. Hobbyists also use it for model building, R/C, and other dry CA glue projects.