Hello. I started a colony of 10 opae ula in a small 4L glass cube back in May 2020 and then upgraded to a 12L aquarium with heater and sponge filter with about 30 shrimp. They are doing well and thriving and breeding like crazy. However, It seems that all my berried females are pink in color. I have a mix of shrimp ranging from clear to pink to blood red (even yellow?!?!) but am concerned maybe the pregnant females aren’t getting adequate nutrition and so they are paler in color. Can anyone please recommend a good food to boost the red coloration? They are subsisting mostly on diatoms, algae and once a month crushed fish flakes. I have included pics to show how the disparity in coloration of the shrimp compared to berried females. I don’t think water parameters would be stressing them out as they are breeding prolifically ( see pic with larvae) so perhaps I just need to supplement food. Thanks in advance for the help.
Attachments:
The 12L tank upgrade
image.jpg (1.22 MiB) Viewed 8988 times
image.jpg (1.22 MiB) Viewed 8988 times
Pale berried female 1
7781A480-B1EF-49FE-BEC5-D717F4DDB5F6.jpeg (401.23 KiB) Viewed 8988 times
7781A480-B1EF-49FE-BEC5-D717F4DDB5F6.jpeg (401.23 KiB) Viewed 8988 times
Tons of larvae (sorry pic upside down)
B8B42BC5-1E18-4068-B58A-F08A1B8A6B19.jpeg (1.12 MiB) Viewed 8988 times
B8B42BC5-1E18-4068-B58A-F08A1B8A6B19.jpeg (1.12 MiB) Viewed 8988 times
Pale berried female 2
D3FD9A9E-BEF8-43DC-9CFB-BEF2332EE40D.jpeg (525.37 KiB) Viewed 8988 times
D3FD9A9E-BEF8-43DC-9CFB-BEF2332EE40D.jpeg (525.37 KiB) Viewed 8988 times
Pale berried female 3
A38F8C59-1BB9-4B72-B8EC-915C0BCB9933.jpeg (684.55 KiB) Viewed 8988 times
A38F8C59-1BB9-4B72-B8EC-915C0BCB9933.jpeg (684.55 KiB) Viewed 8988 times
Pale berried female 4
55C457B6-5808-4CE4-ABE1-519D26F824F3.jpeg (542.96 KiB) Viewed 8988 times
55C457B6-5808-4CE4-ABE1-519D26F824F3.jpeg (542.96 KiB) Viewed 8988 times
Shrimp in tank with expected coloration
CA9CAB76-0B7A-4EB1-BF17-73955EE080DD.jpeg (761.11 KiB) Viewed 8988 times
CA9CAB76-0B7A-4EB1-BF17-73955EE080DD.jpeg (761.11 KiB) Viewed 8988 times