odd laying habits!!!

[eggchicken master]

for an odd reason, some of my hens randomly stopped laying. I have 6 layers but 2 of them are'nt laying. I get 4 eggs every day and there always the same!! i need some tips:cd

 

[raindrop]

How old are your hens? When did they start laying? What breeds are they?

 

[eggchicken master]

i have 1 red sexlink (9 months) 1 light brahma (8 months) 2 rhodes ( 9 months both) 1 white tailed chesnut ( this is my very oun breed i bred them to breed true and shes an every day egger, 1 year) 1 ameracouna (8 months) the two who i suspect arent laying is 1 of my rhodes and my brahma.