white blotches on plants?

Martin

Lifetime Charter Member
Lifetime Member
Mar 8, 2005
149
0
16
42
Sebbersund, Denmark
i have a friend who is experiencing some kind of weird white spots on his plants.

You can scratch them off, and they kindda feel like sand...


any ideas?

this plant is a Echinodorus uruguayensis
 

Tom Barr

Founder
Staff member
Administrator
Jan 23, 2005
18,696
740
113
Re: white blotches on plants?

Looks like marl, from bicarb use, add more CO2.

If you can rule out the nutrients, simply add enough.

Regards,
Tom Barr