Posted: 17/09/2014 at 18:37
Hi pp, don't worry where you post, someone picks it up eventually.
I wouldn't expect repotting to affect the plants much. The only thing that crosses my mind is; If you repotted because they were pot bound, are they still pot bound and dry in the middle of new compost and can't break out into it.
I can't see fish blood etc having any adverse effects and certainly not that quickly unless you sprinkled it on the leaves? No, I thought not
Grit is fine on top of compost