sorry I couldnt be more help, maybe some additional info searching is appropriate..... but .....
This is a copy of info from another website... refs on req.
The Ritteri Anemone has a dark red, pink, purple color. It likes to eat filter feeding invert food, brine shrimp, micro-plankton a few times per week, when open. The Heteractis magnifica is generally aggressive toward other tankmates. Many consider the Heteractis magnifica a high-maintenance specimen. Has strong lighting needs. The Sea Anemone, Bulb-Tip Anemome, Maroon Anemone, Yellow Tipped Long Tentacle Anemone requires strong water flow. Keep water quality high (SG 1.023 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F). The Ritteri Anemone is commonly collected from the Indian Ocean.
This species is very difficult to keep and should only be attempted by expert aquarists, or is a 'delicate shipper.' Our guarantee is not available on this item.