The Green Metallic Mushrooms has a brown, green, tan color. Polyp Mostly photosynthetic. May accept meaty bits and microplanktons. It likes to eat Mostly photosynthetic, may accept meaty bits, phytoplankton and microplankton.. The Actinodiscus species is generally semi-aggressive toward other tankmates. Many consider the Actinodiscus species a low-maintenance specimen. Not venomous. Has low lighting needs.Symbiotic algae zooxanthellae are hosted within this organism. The Disc Anemones, Flower Corals, Mushroom Anemones requires low water flow. Mushroom Coral Fragments can be taken to be separately grown. Allow room to expand. Mushroom corals are either the hardiest group of cnidarians or close runners-up. They can be easily maintained in "standard" or reef-type marine aquaria, are hardy, undemanding, very good choices for beginning to advanced hobbyists. All they ask for is iodine supplementation without too much light or strong current. Keep water quality high (SG 1.023 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F). The Green Metallic Mushrooms is commonly collected from Tonga. Due to variations in growth of Corals from variations in depth, environment, flow, etc. it is impossible to pinpoint exact sizes. These sizes are very approximate and will not apply in all situations.

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