Tell them. I asked my local pets at home why do they have a notice saying you cant put fish in a tank until its at least 3 days old and informed them that i wouldnt do it even if i'd used seeded media.
Its good sport asking poorly trained staff difficult questions.
And in selby pets at home last weekend i heard a member of staff saying you cant put loaches in a tank with no buildup of detrius because it would have no food at which point me and dan walked out laughing
Someone wants to tell them to get Tropica Specialised on stock. I often call into P@H branches when I'm out and about as an excuse to get away from the real shopping trip I'm meant to be on and I've never came across one that stocks Trop Spec.