Hiding/Shy?

Dec 8, 2005
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Harrison Twp. Michigan
#1
So a few days ago, one of my mollies died, and since then, all the other fish in the tank have been really shy and hiding behind all the plants and rocks.

Is there a particular reason for this? and what could help change that? bc having fish that are hidden during the day is kinda pointless in my opinion.

Advice, suggestions, and opinions welcome please.