changing nutes?

[Dacostarasta]

Greetins everyone! i need some help! plants are going into third week of flowering using iguana bloom but think it has expired had it for 8 months can i flush and change nutes? would this harm plant? would switch to optimum bloom A &B Please help!

 

[scragelynugz]

Greetins everyone! i need some help! plants are going into third week of flowering using iguana bloom but think it has expired had it for 8 months can i flush and change nutes? would this harm plant? would switch to optimum bloom A &B Please help!

You can switch nutes and all that... for more help next time post more specifics of your grow, medium, fertilizer NPK values, and pics are always nice... Flowering plants will want high phosphorus and potassium compared with nitrogen.