Mostly through the leaves ....
Check out the APD
http://fins.actwin.com/
search Tom Barr
Bob
"Joseph Liew" wrote in message
...
I'm a planted aquaria newbie.
Just wondering: when dosing, the nutrients dosed are added into the water
but most water plants have roots in the substrate. Therefore, how does an
aquatic plant with roots in the substrate asorb the nutrients? Thanks.