Breeding Journal DataSheet
This first post should be updated regularly to include new information as events take place or changes are made to your system
General Species: Lysmata amboinensis
Social Structure: hermaphroditic pair
Size of Individuals: 2"
Age of Individuals: unknown
Date added to Tank: June 2014
Broodstock Tank Details Size of Tank: 10 gallon
Substrate Details: none
Filtration Details: plumbed into 116 gallon broodstock system with large wet dry and skimmer
Water Changes: 30 gallons to the system once monthly
Water Temperature: 80F
Lighting: LED 50/50 combo of 10K/420nm blue
Lighting Cycle: 12 hours on 12 off
Other Tank Inhabitants: none
Broodstock Feeding Details Food Types: Hikari Marine S pellet (sometimes soaked in Selcon), frozen raw table shrimp, frozen mysis
Feeding Schedule: 1-2 times daily
Spawning Details Date of First Spawn: 6/14/2014
Spawn Time of Day: night
Dates of Consecutive Spawns: 6/14/14, 6/29, 7/16, 7/31, 8/10, 8/26
Courtship Details: never witnessed as this happens in the dark
Egg Size: 1-2 mm
Egg Color: jade green
Egg Count: hundreds
Hatch Details Hatch Date: the hatch I attempted to raise was on 8/10/2014 from spawn on 7/31/14
Hatch Time of Day: night
# Days after Spawn: 13
Larvae Description: Z1 look like tiny colorless shrimp with 3 long legs on each side used for swimming 2-3mm. Transition to Z2 (instar stage after first ecdysis) happened at day 4-5. Some red pigment and longer eye stalks appear; size is 3-4 mm. Z3-Z6 they just get slightly bigger with long paddle legs and more red pigment. I believe Z6 is as far as I got with these.
Larval Tank Details Temperature: 80F
Size of Larval Tank: 10 gallon hexagon
Substrate Details: none
Other Tank Decor: 2 air stones
Filtration Details: day 1-11 just air stone circulation. day 12 added sponge filter
Lighting: 10 watt CFL
Lighting Cycle: 24 hours on
Water Changes: many small water changes probably averaging 100% weekly (ammonia was an issue)
Larval Feeding Details Food Types: new hatched artemia
Feeding Schedule: constant (as possible)
Metamorphosis/Settlement Date of Settlement Start: Z1 stage days 1-3, Z2 days 4-10, Z5 days 10-16, Z6 days 17-26 (when the last one died)
Days after Hatch: molting into different stages begins 4-5 days after hatch
Date of Settlement End: THERE IS NO END!
lol (Getting these guys to settle is NOT easy!)
Description of Fry: They look a little more like adult shrimp as they develop. For stages Z3-Z6 they have cool paddle legs that get really long, the tail is well developed, and they have pincers on long legs. At this stage they will grab and hold onto larger meaty foods.
Grow-Out Tank Details Temperature: 80F
Size of Grow-Out Tank: 10 gallon hexagon
Substrate Details: none
Other Tank Decor: sponge filter, 2 air stones, heater
Filtration Details: sponge filter
Lighting: 10 watt CFL
Lighting Cycle: 24 hours a day
Water Changes: frequent small changes adding up to about 100% of tank volume weekly
Size at Transfer: I didn't get that far. All were dead in Z6 stage at day 26.
Age at Transfer: I didn't get that far. All were dead in Z6 stage at day 26.
Grow-Out Feeding Details Food Types: the larvae were fed NHBS constantly, later they were given small cut scraps of raw thawed table shrimp
Feeding Schedule: constant supply of NHBS, frozen table shrimp given once daily at Z6 stage of development
Additional Information (No Pictures or Videos in the Section Please) Miscellaneous Information: Glad I had the opportunity to take a shot at such a difficult species. There is obviously some settlement cue for L amboinensis that needs to be discovered. If one of my breeders had not died I would have kept experimenting with these. Maybe I'll try again someday...
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<message edited by JNeff on Wednesday, July 8, 2015 2:13 PM>