first of all, sorry for my english, i'm not a nativ english speaker..
I doing some TC aready some months. Mostley VFF and hardy Sundew. Now i'm starting with hardy Pinguicula but have some trouble, that i can't solve on my own.
My problem is, that the media always turns yellowish after a few days. In this enviorment the plants tend to turn brown and die if i dont replate them soon. I tried to change pH (5.0, 5.5, 5.8), tried to change sugar (20g, 25g, 30g), tried plainmedia and media with PGR, tried MS diluted to 1/4, 1/3, 1/2 (all with full micro nutrients AND full vitamins), tried solid media (Gelcaren) and liquid. But the problem stays...
If some guy has any idea, please give me some tips, that i can try.
I added a picture, that shows the problem. You can see cultures of P. vulgaris (yellowish) and right next to it on same media D. regia callus forming shoots (not yellowish).
Thanks in advice!