Spinal curvature in SJOs was : KillieTalk Digest V3 #1260

["Ron @ FAR EAST" <ronwill at cyberway_com.sg>]

Hi all,

I recently water-incubated and hatched some SJO frys.  All are eating well and growth rate are pretty even, except that a
small number of them had spinal curvatures.... some obvious from the top view while others from the side.   Incubating /
hatching / grow-out water is neutral with a pinch of marine salt.

Knowing what causes it will help prevent a recurrence, so was it due to;
a. damage sustained to eggs during eye-dropper transfer (changing water).
b. inbreeding.
c. premature hatching.
d. water condition.
e. improper incubation (I understand SJOs are "switch spawners")
f. TB??

The frys are on a mixed diet of microworms, BBS and sieved daphnias.  Water change on alternate days with aged water from an
extra tank.

Any thoughts, comments or observations most appreciated.

Regards,
Ronnie Lee
Singapore

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