07-18-2014, 12:19 AM
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i haven't heard enough about planaria, what i have heard ranges from "they are carnivores" to "different planaria have different diets", ... i couldn't find anything that would be more clear, such as the important "this species has this dietary preference"
the small 'worms' are likely microworms, ... food for small fry
the "one big worm", ... i got nothing on this, if it's still alive, ... does it survive completely submerged underwater (ie. does it drown or not)? ... hmmm, other thoughts
while this isn't a great way to tell it's a way to guess
color of the big worm ?
have a look online (i like google images for searches), ...
search for tubifex (is this it?)
search for blackworms (is this it?)
color could help, but not definitive
shape of the body would be a big help.
if it's tubifex, hmmm, i dono if these are self-replicating or not, ... if it's tubifex try to feed it and keep it alive (do not put this in your tank - at least not anytime soon) ... if it's tubifex (and if it reproduces), ... quarentine it for a month, if they're all dead, there's parasites in it, ... if they're all alive (safe a tiny reasonable amount) consider yourself one of the rare people in north america to have live tubifex to feed their fish
if you do any research on tubifex you'll find out why they're so rare
otherwise blackworms, more live food
if it's neither tubifex nor blackworms, ... and it survives submerged, ... i really would like to know what kind of critter it is :)