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Pavona cactusis
A hardy SPS coral with distinctive leaf-like or encrusting growth forms. Tolerates a wide range of conditions, making it a good beginner SPS coral. Available in green and brown.
Filter Crash
The biological filter fails after aggressive cleaning, media replacement or a long outage.
equipmentCyanobacteria (Blue-Green Slime)
Slimy blue-green or dark purple patches with a foul odor.
waterOld Tank Syndrome
Water quality slowly worsens over months or years despite regular small water changes.
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