To make this short and sweet, well not so sweet..I have an issue with all my plants. The new leaves come up great, but then they become yellow/brown and die off. I think I have some excess phosphate so Ive cut back on feeding to try and clear it up abit, but it hasnt shown much help.

currently there is roughly 80w's total on the tank which is a 46g. I know I need to up grade them, just waiting for payday.

is there anything beyond lighting I can do? I also use seachem's iron and flourish monthly.

Any ideas?