Yellow Tip Ritteri
A variant of Magnificent anemone (Heteractis magnifica)

Representative Magnificent anemonephoto — a dedicated image of this exact morph isn't available yet.
A magnifica with long tentacles tipped in bright yellow, often over a tan, brown, or purple base; the yellow finger tips are the signature feature.
📜 Backstory
Sold as 'Yellow Tip Ritteri' by vendors such as AquariumFish.com and described at FreshMarine as the 'yellow tipped long tentacle anemone.' This is a natural wild color morph collected across the Indo-Pacific; tentacle tip color varies by collection locale, so yellow-tip and purple-tip pieces are simply different wild origins rather than designer lineages.
Keeper tips for this variant
Position it where it gets both strong light and direct flow on the tentacle tips; magnifica are open-water anemones that color up and feed best in a high-flow lifestyle, unlike sand-dwelling species.