Oh, that's a good connection you made with me! I've kept Bettas for 8 years and had only 4 of them! First was a blue veiltail female, 2nd, blue-red Delta Tail mail, 3rd, juvenile Blue-red veiltail male, then currently my 4th, Caspen, again, he's a Halfmoon Double tail. And if I knew Red, anyhow, he is missed. He's looking upon you, saying to you by spirit, that "you have taken care of me". To have you look out, everytime you, and only you, see either a cardinal, or one of the cute, tiny, exotic birds, they are delivering you a message from the dead. I have cardinals come to me all the time, giving me messages from my dead family members, and my pets. I hope your other fish send messages to you soon 😊