There is are worse places to put your head than a frog tank. It can get awfully dark in some of the other places.
I seldom hear my darts call unless like Homer, I virtually have my head in the tank, or very close. The leucs are loud, and I have to be really close to hear the pumilios or imitators. The others, I've never heard at all, although I've removed some fertile eggs from both the D. reticulatus and D. fantasticus tanks to a petri dish and am hatching out some tads. I think you'd have to hang out all day with a stethoscope against the tank walls to hear some of the dart calls. Before anyone comes in to say their pumilios are loud enough to annoy them, I will make a disclaimer-- I'm a senior citizen in spades, and probably more deaf than I've been willing to admit. Homer doesn't have this excuse, however, so maybe they actually aren't very audible.
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Patty
Pahsimeroi, Idaho
4 D. auratus blue
5 D. galactonotus pumpkin orange splash back
5 D. imitator
6 D. leucomelas
4 D. pumilio Bastimentos
4 D. fantasticus
4 P. terribilis
4 D. reticulatus
4 D. castaneoticus