Red Sea Aiptasia-X

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Red Sea Aiptasia-X
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  • Unique adhesive material 
  • Aiptasia does not retract during treatment
  • Has no effect on water chemistry
  • Includes both straight and angled applicator tips
  • Available in sizes 60ml and 500ml refill.
  • Please note that the 500ml refill does not include any applicator syringes. 

Red Sea's Aiptasia-X is a guaranteed reef safe treatment for getting rid of nuisance Aiptasia anenomes. Aiptasia are a common pest in marine aquariums, sometimes called Glass, Rock or Tube Anenomes which multiply at a phenomenal rate and aggressively compete for food and space. They are often introduced to the aquarium unintentionally on live rock or coral colonies. They look like very small semi-transparent palm trees with a polyp body and a mouth disc surrounded by an abundance of slim tentacles. There are a few different species most are translucent, but a couple are brown or tan due to their symbiosis with zooxanthellae. These anenomes sting as a defence mechanism and will also withdraw into holes in the live rock. They can reproduce sexually or asexually so can rapidly spread through an aquarium. 

Aiptasia-X is a unique, thick adhesive mixture that globulates on contact with aquarium water in order to prevent it spreading where it is not wanted. It can be easily injected into the oral disk of the anenome which stimulates it to ingest the material without causing it to withdraw. Within minutes of ingesting the treatment the anenome will implode eradicating both the anenome and planulas (larvae). Aiptasia -X is safe for use in a reef tank as it will not affect the sessile polyps of corals, it is so safe in fact that it can be used to treat Aiptasia that have grown inside coral colonies themselves! Any excess Aiptasia-X will decompose over time and not cause any harm to the reef. 

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Delivery costs for your order will be calculated during the checkout process based on your delivery address and the contents of your basket. You will only pay one delivery charge for your order. Express delivery is FREE for online orders OVER £39 unless any of the points below become a factor.

  • Some large items like aquariums, ponds and pond liners will have an additional charge of £45.00 to help offset the cost of a pallet delivery.
  • Orders containing a physical gift card will have an additional charge of £2.45 to cover the cost of materials and delivery (digital gift cards are a free alternative).
  • Orders to highlands, islands and Northern Ireland may incur an additional delivery charge displayed at checkout this is based on the postal code provided. DPD provides a list of postal codes which have additional surcharges. Some of these post codes may also take 2 working days to arrive, even on express. Pallet deliveries cannot be sent to these post codes.

We only ship to the UK and cannot ship internationally.

We aim to dispatch items that are currently in stock on the same working day if they are ordered before 2.45 pm (excluding Bank Holidays). Orders after 3pm will be dispatched the following working day, unless it fits any of the below criteria:

  • Orders containing live plants will take up to 2 weeks to arrive. We take a week's worth of customer orders and then inform the plant farms of the specific quantities we need to fulfil that week's order to avoid wastage.
  • Pallet orders containing large items like big aquariums will take additional time to arrive as they are sent by a third party. These orders will NOT be dispatched until we have been in touch to arrange a delivery date, this is to ensure someone is available at your address to sign for the delivery. Deliveries will generally be delivered ‘curb side’ within the terms of the agreement we have with our couriers so you will need to make arrangements to transfer larger items into your home yourself. Unfortunately, our drivers are not insured to transfer the aquarium into your home.
  • Physical gift cards and items from the gift shop (such as clothes, towels etc) are sent with 1st Class Royal Mail. Delivery usually takes 1-2 working days, though in rare cases and orders placed closer to public holidays (Christmas, Father’s day, Mother’s day etc.) may be longer.


If you are not 100% satisfied with your purchase online from our website, you can return the product and get a full refund or exchange the product for another one, for up to 21 days from the date you purchased it.

We strongly suggest signing up for an account with as this will allow for some additional returns options like return to your local store.

If you checkout as a guest you will need to return the product to Maidenhead Aquatics, PO Box 619, Egham, Surrey, TW20 2BS, please package the order (along with a packing slip or a note including your name, address and order number).

Large pallet items like aquariums are deemed delivered successfully with no damage once the the driver has left the property. If a report of damage is submitted after the driver has left we may be unable to assist with replacements. We recommend refusing a damaged delivery, this is the fastest resolution.

Our full terms and conditions can be found here. When you place an order with us online you are agreeing to these terms and conditions.

For delivery before Christmas, orders must be placed on or before 3pm on Wednesday 20th December. We cannot guarantee delivery of these orders pre-Christmas as we are reliant on our couriers, but will use our best endeavours to get orders placed on this date out to you before Christmas. For full details of our festive delivery and opening times click here

Please note: online orders placed after 3pm on Friday 22nd December will not be dispatched until the New Year. For full details of our festive delivery and opening times click here