Update:
Well, my female isn't doing very well at all. The wound is getting real bad, and she hasn't touched any food in 3 days. I've dosed the tank with Pimafix and Melafix, but I don't think it will help, as it didn't with the male I had when he had a chunk taken out. I'm just wondering who did it, one of the males or the red tail shark? hmmm... The red tail has been pretty aggressive lately. He's pretty plump, as he's had a lot of good food to eat. He's always grazing on the algae on the plants, etc. And occasionally gets some of the food. But I feel real bad for her, she's been a very good girl. It just goes to show that if a GBR get's sick or injured, there's almost no recovery. Seems like they just have no desire to continue. But will keep a close eye on her. The male is still very protective of her. I tried to remove her, and he quickly came to her rescue, and she darted with him into the thick jungle vals. If she goes, I feel he's probably going to be sad for a few days. But there will be more, as tomorrow, my 10GBR's are being shipped, 7 of which are females. Should have them all by 10:30 Thursday morning.