Frogspawn seems to win each touching battle but looses the war. I had a gbta next to a frogspawn and each time they touched the gbta would pull away, but after a while that head of frogspawn died.
I've got both within pretty close proximity.. the GBTA ended up moving, but i think that was primarily because now it's easily TWICE it's previous size.. (was too constricted, I guess?)
I placed a new frogspawn in the vicinity of a large rbta in my 100 gallon and noticed last night the rbta had completely retracted, which is not like the rbta. I don't think it will be an issue, but since the frogspawn can't move I wanted to ask about it. Thanks for everyone's help.