Anubias is lack of something ?

[Manindernz]

Hey everyone still new to this soo i bought 3x Anubias  from fish farm and this is what happening to them i see leafs with small dry holes 

Bit about my tank not on c02 its bare bottom been adding excel with small doses of iron would be great if some one can tell me whats wrong with it .. ? Thanks in advance  

Pic Link 

http://postimg.org/image/jxxalxhjv/

[alexyay]

It might be worth getting a "comprehensive" fertilizer such as regular Flourish - small holes can indicate magnesium or potassium deficiencies, but it is always hard to tell when eg plants show deficiencies differently and over-dosing can also cause symptoms similar to deficiencies. 

[Li@m]