Almond milk kefir

I am trying almond milk kefir after doing milk kefir for several years.The scoby on the top of my second batch of almond milk kefir had some pink coloring in it.  I removed it (scoby) and put it in the seive and rinsed it with filtered water. the pink was sort of a slime.  What is the pink?  Is it bad?  Has it ruined my grains?  The first batch I used date paste for food. There were some date particles with the grains when i started the second batch. I used unrefined pure cane sugar for food this time.   Thoughts?  Answers?