AMAZONAS—Freshwater Aquariums and Tropical Discovery

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by | Oct 23, 2017 | 0 comments

Hans Ruhrmann muses, “I once thought of the small invaders in my ‘Microfex’ (Dero Worm, Dero digitata) cultures as unwelcome competitors for the worms, but once I recognized their value as live foods for small fishes, I looked for ways to culture them deliberately.”

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