Join Date: Oct 2012
Location: North Central, OH
No. snail eggs will be attached to decorations or tank walls not be buried inside of the gravel.
I'm not sure where ADF's put there eggs, but I doubt that they are hidden in gravel as well.
Continuing using your gravel vac would be the best idea.
10 HM, 3 HMPK, 5 HMPK fry
8 German Blue Ram, 5 Green Dragon BNP, 4 Albino BNP, 4 Calico BNP, 6 Red BNP, 5 Kuhli Loaches, 2 ADF, 7 Peppered Cories, & 6 Tiger Endlers + Fry
12 full time tanks, 4 NPT, 6 QT/Breeders