Amazon Sword Not Looking Heathly

[DJ ArKaDaRkA]

the leaves on my amazon sword are starting to curl up and gernrally not looking too healthy im using diy co2 and plant fertilizer bedded into gravel

is this normal or is there a way to stop it

 

[Truck]

got any pics?

 

[DJ ArKaDaRkA]

got any pics?

click the pic


should i keep my airpum off for a while ?

 

[DJ ArKaDaRkA]

they are looking even worse today i just dont understand why or what im doing wrong