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le femmine sono piu cicciotte, i maschi piu' secchi con l'addome meno tondo...
leggevo anche che li riproducevano dentro un cilindro.. forse per la pressione?
scrive un tedesco a proposito di thor e tensione sup....
n my experience some larvae always get stuck to the surface even without aeration. to alleviate this effect i use Phytoplancton to reduce the surface tension and shallow bowls without aeration for the first week. Apart from that larvae are quite hardy and settle at 3 mm length and about 3 weeks post hatch.
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