Well, I did it. ALL of the anubias has been bleached, dechlorinated, rinsed and is now in my 75g tank. Here's what I did, and I will update the results in this thread because I find too many threads where advice is given, but no one ever comes back to say what the results were. I try my best to update with results so anyone who reads this thread in the future won't be left hanging at the end.
I had to use a 3 gallon bucket given the size of the anubias. Fortunately, I have four of these buckets.
I used a ratio of 1 part bleach to 19 parts water. I then set the timer on the nearby microwave for 2 minutes. When I put the anubias in, I had to weigh it down to be sure all the leaves were in the bleach solution which only required that I use a small glass from my cabinet.
I then used the same 1:19 ratio for the dechlorinator in another 3 gallon bucket. I have a gallon size bottle of Stress Coat I'm trying to use up (I've switched to Prime now) so I decided to use the Stress Coat liberally to stop the chlorine action on the plants.
When the 2 minute timer went off, I tried to rinse the plants in plain water, but they're too large. So I did the best I could and then plunged them into the bucket with the dechlorinator. I continued to do this with batches of the anubias until all of the anubias had been bleached and placed in the dechlorinator bucket.
From there, I took a 3rd bucket with another liberal amount of Stress Coat. I plunged each plant in that bucket, pulling it up and down to be sure all parts of the plant was rinsed off. Now I used a fourth bucket in my sink with tap water constantly running in it (to fill and then overflow the bucket). I took each plant, one at a time, and rinsed it in that water. As I did, I grabbed a rock and used zip ties (those plastic ties with metal in the middle you get for just about everything you buy with a cord) to create fast anchors for the plants. As soon as I had a rock tied to the anubias, I ran it to my tank and dropped it in.
I repeated this for every plant.
I added Prime to my tank at the quantity you would use for the full amount of water in the tank. So since my tank is a 75g tank, I used enough Prime for 75g of water. This was to ensure that I didn't accidentally get all the bleach off the plants. This was more for the fish than the plants.
I did not try to pull off any of the dead (now gray/white) BBA since it was so strongly attached, it would rip the leaves instead of coming off. So that is now in my tank. I hope it's dead.
I have just shy of 40 amano shrimp in the tank. I don't know if they'll eat the dead BBA or not. Only time will tell. My hope is that the dead BBA will eventually melt off as I've seen people report it doing when they've used hydrogen peroxide to kill BBA.
My goal now is to (1) watch extremely closely for ANY signs of living BBA anywhere in the tank and take action instantly if I see it. (2) Get my CO2 up and running (I hope to do that later today). (3) Concentrate on caring for the plants, not fighting the algae. And (4) keeping the lights dim while I see what happens to the BBA.
From here, I'll just have to wait and see what happens! Wish me luck! This is one way to learn how to battle an algae problem! Buy the algae on plants!
I want to make it absolutely clear that I was fully informed that the plants had BBA when I bought them and am in no way upset that I'm having to deal with it now. These plants are worth it! So if anyone knows where I got these plants, understand that I am extremely happy with what I received. The source of these plants has been wonderful, and I'd get more in a heartbeat, if possible.