I am experiencing some toxicity troubles during the treatment. Basically, my zebrafish did not survive after 2hs of treatment. I am using 5 microM TAM from a stock dissolved in 100ml conditioned water (1:2000 from stock). I have read several papers using the same concentration of TAM (and the same solvents) for 7-9hs treatment periods, during 3 to 4 days. It is very frustrating to see my zf die.

Stock solution 10 mM TAM in ETOH or in DMSO. Final solvent concentration is 0.05% v/v. I am using Tamoxifen from Carbosynth (CAS Number 10540-29-1).

Please, I would appreciate if anyone have a tip or clue about my problem.

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