Normal
When they get to webbing around the lid I'm usually in there doing maintenance enough and feeding as well so the turrets extent out and conform with the lid which is cool as well. I think turrets help with feeding and care as well. Ephebopus species I do believe can be turret builders as new worlders and I love them but have none unfortunately! Soon hope to change that as well . BTW my Cyriopagopous sp. Bach Ma has molted but is still down in the hole! Too hard to get pics. Ohhh well