I have very soft water, the GH and KH is usually around 3 dGH or less. My java fern has been in a cycle of generating new growth and then developing these black/brown patches that lead to the whole leaf dying back.
Could GH booster solve this problem? I have read in a few places that java fern...
I have a 10Gal planted tank with
3x Melon sword (amazon sword type)
5x Twisted Vallisneria
Bunch of Water wasteria (Hygrophila difformis)
a few stems of bacopa
1 stem of horwort
A patch of Java moss
one small java fern
I use Seacheam seachem flourish, DIY...