JAR said:Is that you Dawg!
Dang dude!
yes, but back in 2004
JAR said:Is that you Dawg!
Dang dude!
Elite said:Isn't it too early to feed BBS?
kathyL said:5.1 – Size at hatching: 3mm
5.2 – Yolk sac present at hatch: Yes, and is generally consumed by day 3 of life.
5.3 – Mouth present at hatch: Yes
5.4 – Eyes developed at hatch: Yes, larvae have excellent eyesight, and too much light can be stressful to them.
6 - Rearing:
6.1 - Breeding & Rearing Techniques
If lighting is too intense, they will dive to the bottom and stand on their heads. If lighting is too dim, they will crowd the surface. First feeding of larvae works best in water containing live food organisms, rotifers, and phytoplankton sufficient to tint and cloud the water. At least one airstone should be employed to keep water moving slightly and well oxygenated. Salinity can be slowly dropped to 25 ppt or so. Temperature should be maintained at around 80 for ocellaris. Higher temperatures will raise metabolism and shorten time to metamorphosis in well fed larvae. Water quality should be maintained as free from ammonia as possible.
6.2 – Day at first feeding:
Within the first 3 days after hatching, usually upon first light.
6.3 - Starvation Time:
If known, include the time post-hatch that larval will live without feeding. This can often be found in larval studies where scientists do not feed the larvae, as well a accounts of failed larval rearing attempts.
6.4 – Feeding scheme:
In captivity, the planktonic larvae are fed exclusively for the first several days on marine rotifers (cultured with phytoplankton or yeast, and then enriched (with high quality phytoplankton, selco, selcon, ratio hufa, etc.) before consumption.) Rotifers should be added to the larval tank for a final concentration of 8-15 per ml tank water, so that the larvae will see one frequently, and learn quickly how to hunt and feed.
Around day 4- 6 depending on size, newly hatched brine shrimp and or appropriately sized dry food may be introduced. New foods should overlap with established foods for a few days. These times are approximate for A. ocellaris, and may vary with species. Brine shrimp may be continued for several weeks or avoided altogether if the larvae accept dry food early. Larvae should be weaned onto a high quality dry food as soon as they will take it, with some overlap with live foods to prevent starvation of those who are slow to learn.
6.5 – Age at meta: Usually for ocellaris, 5-11 days
First sign of impending metamorphosis is tail curling. Next the larvae develop a white headband followed soon after with a middle band. Body deepens as intestines kink, and larvae become fish shaped. Ocellaris acquire an orange color generally, except for the white bands. As the fish grow they fill in the tail band, and black outlining of fins and bands.