Re: Aquatic Plants Digest V1 #34

>From: "T. Misiak" <misiak at fsu_fsufay.edu>
>Date: Sat, 23 Sep 1995 20:13:37 -0400 (EDT)
>Subject: iron concentration
>	What is the "optimum" iron concentration for good plant growth
>that is still  safe for all the aquarium fish?  TIA.  
>	Tom

0.3 ppm iron as Fe is safe for all fish and plants as far as I know.