Umm half the size of a dime. Well the ones around here atleast. Stuff from the wild is "okay". Sure there are captive breeders out there that may sell online. But I quit buying stuff alive online a long time ago. Through bad experience with breeders/salespeople. Most of the times the stuff would arrive dead. Or die within the same day. Sometimes the person carrying the package(UPS and such) would fail to knock on the door. Even then I had to wait outside for a couple of hours just to open a package and find the animals dead. I'ved ordered fish, turtles, and a couple of frogs(whites treefrog where the frogs)-- all arrived dead within arrival. Plus I don't -think- toads live longer in the wild that they would in captivity. Because of the fact there are many things that can affect them in the wild such as:
-Predators(just because they are toxic doesn't mean they don't have any predators)
-Weather(sometimes floods, and other crazy weather could kill them. I remember going to a river once, there was a big thunderstorm and the toad had its leg wedged in between a rock.)
-Accidents(they could drown, they could be crushed by a large object--- I did see it happen a few times, they could get accidentally whacked by a weed hacker.)
-Predators(birds, snakes, nocturnal animals)
-People: sometimes they can be ran over, stepped on accidentally(sometimes you cant tell when they are there apparently since they got good camouflage), mutilated by a weed hacker, etc. That's just my opinion. They do get used to captivity, as would any animal. In all honesty even a captive bred toad is still "wild". Its not "tame" in the sense they will love you like another person would.
Okay if he was sarcastic that's his problem. As well as if I didn't care to listen to your views, i'd simply disregard it and say "okay, will do". That's ussually a sign that I don't care. The whole two level thing is not that hard but I asked a few people on some other forums about doing something like that--- I ended up getting negative responses.
A 75gallon is NOT a small tank for most people. That's actually on the big side. ---Though you did give me a great idea for a tank set up. A second level will also provide shade for the bottom level(like night time), so a light could be kept going on the upper level for them(not overly bright--- I myself don't like extremely bright lights so I get that). I just need to make sure that the bottom level can stay dark enough. (I will work on the idea--fix some bugs here and there)
Anywho asides of my idea. You're not an expert if you don't have a degree. Just wanted to point it out---not attacking you. You maybe more advanced but that's different.
Anywho. I will try your idea in one tank, and try my idea in another and see how it works just for the "trial and error" sake and I will tell you how it goes. I really love toads, and I want to learn as much as possible as I can. But I also want to learn visually. I want to experience the life cycle of a toad. I want to see the color morphs they have(variations they have) so I can pick a few specifically.