Bad Wolf

My auntie is overstocked on yabbies and she said she'll give me 4 or less. i have a few questions on them.

first things first, DO NOT tell me i am overstocked cause i know that i am going move some fish in a different tank.

i heard yabbies/crawdads can get 20 cm (8 inches) long. T or F?

will one or more be fine in a 50 gallon tank with things as small as danios, guppies, kuhlies, corys and a small clown loach? there is plenty plants and rocks and other hiding places. i also have an angel in there as well.

if kuhlies and cory's will get eaten i can move them into my fry tank. i also have a small BN Pleco in the main tank.

yabbies do eat left overs and if i throw in some frozen beef heart with that be enough?

thanks for answers.

cichlidsmad

thats nothing compared to me im the one overstocked