[Zbrafish] Lipophilic tracers and MeOH preserved embryos

[Cameron Wyatt]

I have recently received a batch of 3 days post fertilisation
zebrafish embryos in which I had intended to trace the optic
projection with DiI or DiO. Unfortunately the embryos were preserved
in MeOH.
Can anyone direct me to a protocol for rehydration which would make
the embryos suitable for tracing or has the MeOH rendered them
unusable?
Any suggestions will be greatly appreciated.
~ Cameron