Root rot in the Aerogarden? Day 56

It's Day 56 of the Aerogarden Ultra, and suddenly things aren't looking great.

My basil plants, after starting out so well, aren't doing too well. now. One completely died and the other is turning yellow, all seemingly in a matter of days. I did an autopsy on the seed pod to try to figure out why. Here's what I saw:

It looks like a classic case of root rot, which is weird because I've never experienced this with other Aerogarden plants before. 

After doing a little diagnosis on the Web, it has the classic symptoms of Fusarium wilt, although for the life of me I have no idea how the fungus could have gotten into the Aerogarden. The only explanation I can think of is that somehow the seed pods had it to begin with. 

The thyme and oregano don't seem to be affected, but of course the parsley never got started, the cilantro is struggling, one basil is dead, and the other basil looks like its stem near its roots is deteriorating fast, resulting in yellowish leaves. 

Doesn't look like there's much life left on this one. The cilantro looks similar--the leaves are starting to wilt and the stalk at the base is getting thin. 

It may be time for me to write to Aerogrow and ask for replacement seed pods. Not sure how they'll react when I say I need two new basils, a parsley, and a cilantro. I'll also ask them for advice on how to prevent this in the future, and whether they'd suggest I completely sanitize and restart the garden.

Here's todays' tip, complete with a sprig of thyme in the picture: 

"As your plants grow, you may see some dead or brown leaves. This is perfectly normal. Just remove with your shears".

In the meantime, the tomatoes are still going strong, although to this day I still see the occasional white flies circling around. I guess they've laid their eggs on certain leaves and are hanging on as long as they can. I'm still trying to spot the eggs and remove the leaves as much as I can.