Lalalab☆ ~Gal to Kagaku to Seishun to!~ - Vol. 1 Ch. 4 - Sensei is Seriously the Best!!

[MangaDex]

 

[giang10012001]

I never actually thought agarose gel can be reused but that makes sense... but I feel like that the lab is just massively underfunded to even have to reuse agarose gel (it's just agar agar + running buffer solution, both are not pricey)