The average individual is usually 0.3 to 0.5mm, 1.5mm are giants. And though they're described as barrel-shaped, they're not as wide as they're long.
The main problem is they're close to translucent, so bigger individuals can be visible with good vision and the right light, but it's not exactly trivial.
The main problem is they're close to translucent, so bigger individuals can be visible with good vision and the right light, but it's not exactly trivial.
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