• Globulates on contact with water — the material holds together at the anemone instead of dispersing into the flow.
• Ingested, not repelled — the anemone feeds on it and stays open, so the treatment reaches the whole animal.
• Kills the planulae too — Red Sea states the anemone and its planulae are eradicated together, which is what stops the retaliatory outbreak.
• Reef-safe as directed — Red Sea states it does not affect the sessile polyps of corals, so aiptasia growing inside a colony can be treated in place.
• Does not affect water chemistry — material the anemone does not take in decomposes over time without harming the reef.
• Angled tip for the awkward ones — the kit includes a straight and an angled lock-on tip for anemones tucked under an overhang.

Aiptasia-X kit (60 mL) includes:

• 60 mL bottle of Aiptasia-X
• 3 mL applicator syringe
• One straight lock-on applicator tip
• One angled lock-on applicator tip

Aiptasia-X refill (500 mL) — not included:

• No applicator syringe
• No applicator tips
• No 60 mL applicator bottle

The 500 mL is a refill bottle only, meant for decanting into the applicator bottle from the 60 mL kit. If this is your first Aiptasia-X purchase, buy the 60 mL kit — the refill on its own gives you no way to apply it.

Red Sea's safety data sheet lists the active constituents as calcium chloride (8–12%) and sodium hydroxide (0.5–2%).

Draw Aiptasia-X into the syringe, fit the tip that reaches your anemone, and deliver the material right at the oral disc. Watch for the anemone to take it in — it should stay open rather than pull back into the rock.

From experience behind the counter: pause the return pump and wavemakers for a few minutes first. The material is designed to hold together in water, but stiff flow will still lift it off the target before the anemone gets a proper mouthful. Restart the pumps once the anemones you treated have collapsed.

Work in batches rather than trying to clear a whole tank in one session. A large simultaneous kill-off puts a slug of organic material into the water at once, and that is the only realistic downside of the product.

Suitable for: aiptasia anemones in marine and reef aquariums, including anemones growing within a coral colony, on live rock, on the glass and in the sump.

Not suitable for: freshwater aquariums. It is also not a broadcast treatment — it is applied to individual anemones and does nothing to aiptasia you have not physically reached. Very large infestations across dozens of rocks are usually better handled by treating in stages over several weeks.

Rinse the syringe and tips in fresh water after each session or the residue sets inside them and the next application clogs. Cap the bottle tightly and store it out of direct sunlight and out of reach of children.

Skimmers and mechanical filtration can stay running once flow is restored; pulling the imploded material out is helpful rather than harmful.

• Red Sea Marine Care Multi Test Kit — check nutrients in the days after a large kill-off.
• Red Sea NanoMat — mechanical filtration that pulls the debris out rather than letting it break down in the display.
• Red Sea Coral Pro Salt 20 kg — for the water change that usually follows a heavy treatment session.
• Seachem Algae Scraper — for the aiptasia that set up on the glass rather than the rock.
• Red Sea Reef Foundation ABC 3 Pack — to bring calcium, alkalinity and magnesium back on target afterwards.

Any manufacturer warranty Red Sea offers applies in addition to your rights under the Australian Consumer Law, which are not limited or excluded by it.

Both sizes ship as liquids. The 500 mL refill is the heavier of the two and is charged accordingly. Red Sea's safety data sheet classifies Aiptasia-X as dangerous goods for transport (UN3316, Class 9, Packing Group II), which is why some couriers restrict it to ground/sea freight rather than air.

How many aiptasia will one bottle of Red Sea Aiptasia-X treat?

Red Sea states that the 60 mL supplied in the kit is enough for approximately 100 aiptasia anemones. The 500 mL refill holds roughly eight times that volume.

Is Aiptasia-X safe for corals, shrimp and fish?

Red Sea states that Aiptasia-X does not affect the sessile polyps of corals and that material not ingested by the aiptasia decomposes over time without harming the reef, which is why anemones growing inside a coral colony can be treated in place. As with any treatment, apply it to the target rather than broadcasting it, and do not dose more than you need.

Does the 500 mL refill come with the syringe and tips?

No. The 500 mL is a refill bottle only. The syringe, the straight tip and the angled tip come with the 60 mL kit, and the refill is intended for decanting into that kit's applicator bottle.

Will Aiptasia-X change my water parameters?

Red Sea states the product does not affect water chemistry. The practical caveat is biological rather than chemical: killing a large number of anemones at once adds organic material to the system, so treat in batches and keep mechanical filtration running.

Does the aiptasia grow back?

Red Sea states that the anemone and its planulae are eradicated together, which is what separates this from cutting or scraping. New anemones can still appear from planulae already released elsewhere in the tank before treatment, so expect to go back over the rock a few times across the following weeks.

Can I use it in a freshwater tank?

No. Aiptasia are marine anemones and Aiptasia-X is a marine and reef product.