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Codium (Sea Sponge Weed)
Codium sp.
Family: Codiaceae
📍 Worldwide in temperate and tropical seas
Spongy, dark green dichotomously branched macroalgae with a velvety, foam-like texture. Attaches to rock and can grow quite large. In temperate reef tanks it is a natural part of the fauna; in tropical tanks it can become invasive. Slugs (nudibranchs) and sea hares may graze it.
Keeping this species
- flow
- moderate
- note
- more common in cooler-water setups; can spread aggressively in warm tropical tanks
- role
- display / occasional nuisance
- lightLevel
- medium
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Natural Habitat Temperature
64°F — 77°F seasonal range · (Jan low, Jul high)