Do plants need sodium?
Recently came across a post that some plants are a "C4 plant" and thus require sodium. The poster said they add sodium bicarbonate to their RO water.
Dwarf hairgrass is apparently one of these plants and I have a lot of in my tank so I'm interested in finding out more.
Can anyone elaborate? Do you dose sodium? I generally haven't seen mention of sodium in the 'Share' thread, but I've also not read the whole thing.