Updated post. I also trimmed a bunch of red ludwigia out of my planted tank. The red ludwigia does have some brown algae on some leaves. Take it along with the water sprite for $10 to cover shipping. Both go to the trash tomorrow morning if no one wants them.
I had the devil sitting on one shoulder saying: You know you've been after some Red Ludwiga- and you don't have any Water Sprite yet.
Then the angel on my other shoulder was telling me- "yes, but you said you wouldn't buy anything else for the aquarium until next pay period."
The devil was just loading up his shot-gun and aiming when Laudy put her mark on the thread! The temptation is now resolved- that looks quite a lot of both plants.
Oh, in short... I won't buy today- but PM me next time you do a clean out and have red ludwiga and water sprite available and I may take you up on the offer.