I have some anubias which I have had growing in my Malawi setup for a few years now. I want to remove these and use them in a future planted tank. They have a bit of black and brown algae on them which comes off easily with a sponge. I thought I read somewhere about dipping them in a weak bleach solution, followed by one of Seachem prime. Is this correct and safe ? Are they worth saving or should I just buy new plants ?