One of the things I have tried to do as I progress in this hobby is to look for the most obvious solution to a problem. I remember once calling my ISP regarding a problem I had connecting to the NET. The problem was solved when I discovered my parrot had chewed through a cable.

I have a 50 gallon co2 tank up for about 6 weeks. My dwarf saggitaria is growing in very pale and seems to show signs of fe deficiency. I am doing EI dosing and have a drop checker with a kh reference solution made with baking soda and distilled water. I added iron - no help.

For now I won't get into all the parameters of my tank other than to say I have a reasonable level of confidence that my light, co2, and nutrient levels are ok.

Tonight I stood back and while trying to come up with some exotic explanation of the problem, I noticed that the saggitaria plants seemed to be planted a little deep with the crown a little below the surface. So I went in and pulled them up a bit.

Could something this simple be the cause of what appeared to be a nutrient problem ?

Henry