Hi All,

I'm wondering if Seachem chart and EI are the same, and if they are different how close they are to one another?

I wish I found EI before I bought a complete line of Seachem. I'm doing 50% water change weekly, following Seachem chart for my 30 gallons heavily planted tank, but I cannot control staghorn.

Overdose 3x Excel for 14 days, without success.

Please help, any suggestion is appreciated.

here's my tank setup.

50 gallon tank (but only hold 30 gallons of water)
2.5 wpg
pressurized co2 at 20-30ppm
50 neon tetras
50 cherry shrimps
12 crystal red shrimps

Regards,
Kevin