Results for “fertile”
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Centromochlus macracanthus
Soares-Porto, 2000
Max length71mm SL2.8in SLTank80 × 30cm31 × 12inTemp22–28°C72–82°FpH4.0–7.0All members of the family Auchenipteridae are thought to practise internal insemination and females can carry mature, unfertilised eggs and sperm packets inside the body for unspecified periods of time. When conditions are satisfactory fertilisation is triggered and the eggs deposited, and there is n...
Oryzias sarasinorumSarasin's Buntingi
Popta, 1905
Max length60mm SL2.4in SLTank100 × 30cm39 × 12inTemp24–29°C75–84°FpH7.0–8.0Utilises a strategy which has become known as 'pelvic brooding'. Spawning tends to occur in the early morning, with dominant males darkening in colouration and defending their space by driving away potential competitors, while approaching ripe females in a rigid 'head-down' position. The eggs normally number 8-12 and are expelled as a single mass while being fertilised simultaneously, after which they continue to hang from th...