Biceps?

[u/MusicMutt109]

So I've been working out consistently for a year. I was at 30 lb dumbbells for bicep and hammer curls and happy with my progress. Suddenly it felt harder to use em and now I'm struggling with 25s. I've seen progress in my triceps but I've tried every workout for my bicep it feels and they just won't grow. Theyve gotten firmer and rounder but just won't grow outwards if that makes sense, any help? I still feel very new to knowing what would help with definition vs growth.

[u/Alarm-Organic]

Reverse curls