Thread Fin Rainbow lake malawi Use Reef Builder to raise

Use Reef Builder to raise carbonate alkalinity without affecting pH

Footprint: 4

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Care Level: Moderate

Thread Fin Rainbow lake malawi Use Reef Builder to raiseThe Threadfin or Featherfin Rainbow (Iriatherina werneri) is one of the few Rainbows in which the males have long threads extending from their dorsal and anal fins. Rainbows are known for their characteristic large eyes, black or silver band that runs through the middle scale rows, deeply forked mouth, and two dorsal fins. QUICK FACTS: Scientific Name: Iriatherina werneri Minimum Tank Size: 10 gallons Care Level: Moderate Temperament: Peaceful Water