What age do they outgrow the EcoGlow brooder?

[AlienChick]

Yeah, I've been using my EcoGlow for a couple of years now and I do put some plastic wrap or plastic book covers on the top to help keep it clean.
I have not had any problems with it.

 

[ehunter]

A tip to keep the top of the Eco glow clean - line the top with painter's tape. Just peel it off when dirty and line again! Been working for me like a charm.