Plant deficiency

[flaviu.vlaicu]

Hello all.Can someone please help me please with a small problem that I have with my plants ? The echinodorus,microsorum and some others have curly leaves "leaves with wrinkles".What could be the deficiency ? I have 2x20W fluorescent tubes in a 84L tank with a water column of 30cm high.Aquabasis as substrate and Manado on top of it.10h of light / day with 2 hours brake between.I am dosing Easy life Ferro,Easy Carbo,Kalium .I inserting Co2 24/7 and my PH is 6.5.

 

[Voo]

James' site has a section about plant deficiencies that may help
http://www.theplantedtank.co.uk/deficiencies.htm

 

[flaviu.vlaicu]

It seems that I have a Potassium or a Calcium deficiency.But the question is ! How can I insert calcium in the water ? where can I get it from ? Kalium is the same thing as Calcium ?