Undergravel Filter Question
Converted an established non-planted tank to planted.
Increased gravel thickness to 4" - 6" and added laterite.
Recently read an article that said to never use an Undergravel Filter
system in a planted tank but did not say why not.
Does it rob nutrients from plants??? They all seem to be growing.
I have an undergravel setup using two powerheads but could change the
setup if necessary.