if you have easy access to platys and don't mind the project, you could breed the platys resulting in completely healthy fry you won't even have to worry about treating with medication (other then w/ the initial breeding stock) if you go w/ 1 male to 4 females they should have fry about every 3 weeks, and in increasing numbers as the female has more fry after initially giving birth a couple times.
or what I did before the breeding would be to go into the LFS and find a platy or molly that looks really really pregnant (big belly, gravid spot) and put her directly into the QT, let her have her fry (in a breeder box) and then leave the fry in there for a couple weeks, release them w/ mom and treat them all for parasite, feed mom to the preds and grow the others out till they're good feeders and do it all again.
if you don't want the project then id go w/ oddballs advice, QT, medicate w/ whatever is good available around you (which you have figured out) gut load and feed.
either way will result in healthy preds but I find controlling that aspect of their food intake pretty fun, making sure the platys or mollys are as healthy and fat as possible before feeding to the preds. another good thing is they eat algae (platys and mollies) so you can put a bunch in and they'll clean up before being eaten
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or what I did before the breeding would be to go into the LFS and find a platy or molly that looks really really pregnant (big belly, gravid spot) and put her directly into the QT, let her have her fry (in a breeder box) and then leave the fry in there for a couple weeks, release them w/ mom and treat them all for parasite, feed mom to the preds and grow the others out till they're good feeders and do it all again.
if you don't want the project then id go w/ oddballs advice, QT, medicate w/ whatever is good available around you (which you have figured out) gut load and feed.
either way will result in healthy preds but I find controlling that aspect of their food intake pretty fun, making sure the platys or mollys are as healthy and fat as possible before feeding to the preds. another good thing is they eat algae (platys and mollies) so you can put a bunch in and they'll clean up before being eaten
Sent from my DROID4 using MonsterAquariaNetwork App