Hello and welcome! I'm so sorry to hear of your loss, that is so tough. But, it sounds like you and your husband are rebuilding, which is awesome!
Let us know how we can help
The stain of your water from your woof is from tannins leaking out of it, which is not harmful (actually slightly beneficial) to your fish, but an unsightly appearance that will go away with water changes. You can always take the wood out of your tank and boil it, if it's small, or soak it in hot water in a big bucket.
I have Panda Corys, I love them! Do you have sand for them?
Neons are great too, but are fragile. I want to say almost expect for some of them to die, unfortunately.
Best of luck, and again welcome!
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