Actually, there is no mailbag--but feel free to send me an email. There are the Google keywords people are using to find this blog, and some of them look like questions. So, in an effort to be helpful, here goes:
euthanasia snails ... euthanasia aquatic snails ... killing water snail humanely
If you want to humanely kill a snail the options are unfortunately limited. I am not aware of a humane chemical method. Physical methods are unpleasant but have the ability to be humane (that is, instantaneous). You take a very strong plastic bag, insert the snail, crush completely flat with a heavy flat object, dispose. I would not recommend freezing or any form of live disposal (flushing etc).
tums in fish tanks ... tums for snail ... how to give snail calcium ... snails calcium tums
See: Providing calcium to snails
shrimp in a three gallon ... under 1 gallon, shrimp tank ... SHRIMP IN A 5 GALLON TANK ... shrimp 1 gallon ... 1 gallon tank how many shrimps
I have kept dwarf shrimp in a one gallon tanks, but they never seemed to thrive so I gave up on it. I have formed the impression that even dwarf shrimp really need at least 2 gallons.
betta with rcs shrimp ... betta splendens eat cherry shrimp ... betta with cherry shrimp
It may work, it may not. I would suggest providing plenty of hiding areas, introducing the shrimp after dark, and having a Plan B. Bettas have trouble eating a shrimp, but they will hunt and harass them and damage them until they die.
yellow shrimp hybrid cherry
Yellow and cherry shrimp offspring are a brown "wild type" shrimp.