Inadvertent Scud Culture

I unintentionally brought home a lot of scuds when I harvested some pond plants for my tanks. I know I need to be careful about feeding them so I don't introduce pathogens to my animals but I am excited about the prospect of having them as another food source.
I have been reading up on culturing them but I don't think I have read about their lifespan. So my question is if I do get them to reproduce how long do I wait to harvest any to ensure I don't feed any of the original possibly pathogen spreading scuds?
Another question- I have seeded some in outdoor tubs because I have read they can do ok in cold winter temps. They don't need aeration outside right? I have never used aeration in my outdoor daphnia tubs (which were actually doing really well until I very enthusiastically overharvested them one weekend). I'm pretty much planning to house them the same as my daphnia unless someone recommends other methods.

And lastly. I rinsed some of the milfoil off- the plants I collected that brought home the scuds - but I must not have rinsed them very well because after I put some rinsed milfoil in with my adult alpine newt colony I'm pretty sure I saw some scuds swimming in there. What illnesses or symptoms do I need to watch for? Exactly what diseases do these little scud critters carry?

Thanks in advance for the help tips suggestions and info.
Heather

Yes, they need the same conditions as Daphnia, I don't think they would need extra aeration. Pond water in general could contain amphibian pathogens, but I doubt that there are any specifically associated with scuds.

I inoculated one of my tanks this summer with 15 or so rivulogammarus I netted from a creek and now have small ones in most of my tanks. They don't really seem to have the population explosions that daphnia do but their numbers keep increasing despite constantly getting snacked on. I don't think any extra aeration is necessary, I have kept them in tanks and buckets without filters or airstones and they did fine.

Thanks guys! I had read a few threads here that cautioned against feeding wild caught scuds so I was concerned. Hopefully they will be nothing more than a great addition to my newts diets.

If there are any parasites that could infect caudates, starting to harvest after the second generation should be enough to be quite sure that they are safe as the parasites should eventually disappear without a definitive host. As for pathogens in general, i don´t think you have that much to worry about... there should be no difference between the scuds and most other harvested live foods.