Valvoja: Moderaattorit
Tropical fish hobbyist august 2003
Breeding stock shipment of 20 adult Leporacanthicus galaxias introduced into a 250-litre fiberglass aquarium supported by an 30-litre tricle biofilter. Five breeding nests were added to the aquarium, these were 15x8x3cm built from siliconed ceramic tiles. One month from introduction male fish started to dominate the breeding nests. Thirty nine days after introduction female fish started to settle into the breeding nests. Females stay in the nests for 48 hours prior to breeding, during this time they will help the male clean the nest, after 48 hours they lay their eggs in the nest.
husbandry and parameters:
Electrical conductivity 220us
pH 6.9 to 7.2
Hardness 3
Temperature 27
Circulation between aquarium and biofilter by airlift at 80lph (21gph)
Oxygen continuously kept at maximum saturation by two air stones
Daily water changes of 10%
Water tested daily
Feeding two meals per day:frozen bloodworm at a ratio of 3% of the total body weight of the fish at 10:00, and pelleted dry feed56% protein, 12% fat at a ratio of 0.5% body weight, plus one gram spirulina pellet, at 15:00.
Developing and rearing
The number of eggs will depend on the age/size of the female and the frequency of the breeding. the size of the eggs in the spawing were 3.5-4mm. The egg was initially white with a translucent shell. To date all of the eggs observed were found to be fertile, 100% fertility. Males aerate the eggs throughout the relativity long incubation period of eight to nine days. During incubation male L. galaxias transfered the eggs from corner to corner. the egg sac is not firmly connected to the nest wall. In contrast the eggs are very aderant to one another, any attempt to seperate the eggs during this period will cause complete distruction of the ova. L. galaxias larvae are relatively large 12-13mm. larval development is another eight to nine days during which time the yolk sac is clearly visible, interestingly fry are able to take live foods very early in development. Fry develop very fast, measuring 22mm by day thirty of development. During this stage fingerlings exhibit a unique display of colours, which is even more dramatic than their parents. At the stage of 40 days all fish were transfered for further development to another fish farm
Kuinka pitkä kala on? Kysyn uteliaisuuttani vaan.spotted kirjoitti:Nostan ikivanhaa ketjua. Meillä olisi suunnitteilla noin 400-500 litran akvaario ja tuttavalla olisi uutta isompaa kotia vailla yli 10-vuotias helmivampyyripleko, jonka saisimme. Mutta miten on, syökö tämä pleko pienempiä kaloja?
![[;)]](./images/smilies/icon_wink.gif "Wink"){kind=icon}
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