I have a nice Anubias coffeefolia in my small tank that was very
beautiful and very happy. In the past month or so, I've noticed the
leaves have begun turning yellow. Could this be an iron defficiency? The
substrate is laterite, but the anubias sits on a log and I'm not sure
the roots reach the substrate.
Do tanks with laterite bottoms require iron additions to the water
column? Or does the substrate saturate iron in the water?

--
Victor M. Martinez
Owned and operated by the Fantastic Seven (TM)
Send your spam he
Email me he

Victor Martinez wrote:
leaves have begun turning yellow. Could this be an iron defficiency? The
substrate is laterite, but the anubias sits on a log and I'm not sure
the roots reach the substrate.

Sorry, I meant to say fluorite, not laterite.

--
Victor M. Martinez
Owned and operated by the Fantastic Seven (TM)
Send your spam he
Email me he

Do tanks with laterite bottoms require iron additions to the water
column?

Yes.


--
Need Mercedes parts ? - http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home page: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

In article ,
Victor Martinez wrote:
Victor Martinez wrote:
leaves have begun turning yellow. Could this be an iron defficiency? The
substrate is laterite, but the anubias sits on a log and I'm not sure
the roots reach the substrate.

Sorry, I meant to say fluorite, not laterite.

Phew.

I remember dsomebody saying their Anubias really took off when he planted] it in flourite;
it could have been he had a better fertilization regime at the time too. I've never noticed any difference
whered rooted in iron or left bare root.

Add iron. (and traces... are you adding traces with no iron. How?)


--
Need Mercedes parts ? - http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home page: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

Richard Sexton wrote:
Add iron. (and traces... are you adding traces with no iron. How?)

I'll add some iron. I use a seachem product for traces. When I remember.
Which is not often. ;-)
My tanks are mostly self-fertilizing, I guess.

--
Victor M. Martinez
Owned and operated by the Fantastic Seven (TM)
Send your spam he
Email me he

In article ,
Victor Martinez wrote:
Richard Sexton wrote:
Add iron. (and traces... are you adding traces with no iron. How?)

I'll add some iron. I use a seachem product for traces. When I remember.
Which is not often. ;-)
My tanks are mostly self-fertilizing, I guess.


In the sense that as old leaves die their tissue degrades back into
their component chemicals which are readsorbed by the plants, yes.

But fish waste is not a complete fertilizer. They really do need
fertilizing.

--
Need Mercedes parts ? - http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home page: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net