Hi there. I've been lurking for a while and trying to fix this issue myself but I think it's time to ask for help. I have a 65g Hex that I'm trying to grow some plants in. It has been established with fauna for over a year and all of the fish do great. I seriously haven't been able to get plants to do well though. The only plants that actually seem to be doing alright are Java Fern (of course) and what I believe is a Dwarf Red Lily (Nymphaea Stellata)
I'm going to apologize in advance because I don't know what a couple of these are, but I'll try to find plants in the profiles section that look like these did when they were healthy.
I'm using RO/DI water restored with Equlibrium. I have also started using Flourish Excel, and the Lily is doing much better. I am also using http://www.amazon.com/Leaf-Zone-Aquarium-Plant-16-Ounce/dp/B0002566TW because I thought it might have been an Iron deficiency. I also have used root tabs under each of the plants with little effect.
I'm not adding CO2 (using excel instead) and have a 75W CFL (7200K if i remember correctly).
Now, to the actual problem. All of my plants seem to be dying from the point where any leafy parts are connected to the stem or rhizome. My sword-type leaves turn yellow starting at the point closest to the roots and mt grasses do the same. The leaves all eventually get fairly brittle and just seem to dissolve.
I have one that was very tall (Something similar to Echinodorus palaefolius
) and even grew fairly well for a while, but hasn't grown a single leaf in at least a couple months beyond what you can see in the first picture.
Any help or ideas would be greatly appreciated.
Formerly Tall Sword:
This is either Dwarf Sagittaria or Corkskrew Vallisneria (note the yellowing from the bottom, though new leaves are coming out):
Actually a picture of my German Blue Rams courting but you can see the Java Fern doing ok on the left and my formerly tall sword in the back:
The remains of my rooted amazon sword:
Another amazon sword that stuck in a whole in some driftwood as an experiment. It's actually doing better:
Dwarf Red Lily: