I get drowned crickets quite often. Well, I mean atleast 5 out of every 50 I feed my guys end up drowning. I have never seen them eat one that is floating in the water. That is probably because aparantely they only go after moving things.
It is a real pain when crickets die on you if you are in an area where you don't have easy access to them (luckily I do).
About the water level for your future tank... I am not sure what the recomended water level is. I think it just varies. I've heard of some people just putting in a water bowl.
But personally, my tank, I have about, um, I would say, 70% water and 30% land. My water levels have varied from 6 inches, to 3 inches, but I also have shallower patches with just a few centimeters. But my tank is pretty big, 50 gallons so they have lots of room no matter where they are. Mostly they hang out on the center 'heat rock' (not an electric one), or in the bushes and plants in the water.
I've include a picture of my tank. It isn't the best picture, but it is the best one I could take...oh, and that is my son. And that thing on his ear is a bandage from frost bite! (figured people might wonder!!)
Good luck with your new aquarium!
Tanzee
