Fauna Marin Aefw X 500ml
AEFW X is specifically formulated to target Acropora flatworms (“AEFW” and “NAEFW”). The unique composition of the product interferes with larval development, preventing the metamorphosis required to produce reproductive adult flatworms. Adult flatworms exposed to AEFW X will cease reproduction and stop further growth.
Product Specifications
| Item | Volume: 500ml |
|---|---|
| Target Species | Acropora flatworms (AEFW and NAEFW) |
| Mode of Action | Blocks larval development and halts metamorphosis |
| Effect on Adults | Stops reproduction and growth |
FAQ
How does AEFW X prevent flatworm reproduction?
AEFW X blocks larval development, preventing metamorphosis into reproductive adults. Once adults are exposed, they stop reproducing and cease further growth.
Is AEFW X safe for coral or other marine life?
The product is specifically designed to target Acropora flatworms and does not contain ingredients known to harm coral or other marine organisms. However, it is recommended to use it in accordance with local marine guidelines.
Can AEFW X be used in reef tanks?
Please contact customer service for specific usage recommendations in reef environments.

Phil Welch –
Used AEFW X in my reef tank after noticing a growing population of Acropora flatworms. The product worked quickly—no new flatworms appeared after application. Existing ones stopped growing and didn’t reproduce. Very effective and easy to use.
Una Carr –
After several weeks of use, I saw a significant reduction in flatworm numbers. The product seems to prevent new larvae from developing. I’m satisfied with the results, though I would prefer a longer shelf life.
Victor Walsh –
This product solved a persistent flatworm issue in my tank. The flatworms stopped reproducing and didn’t spread. I’ve used it twice now with consistent results. Highly recommend for reef keepers dealing with AEFW.