I've been growing out 5 Peru rhoms all between .5 -3/4" in my 150g planted setup... What's the size they will reach before I have to transplant them to other tanks? They seem to have there territories settled for the time being... Most of them are closer to 3/4" (3) while the other two are closer to the .5" mark.. This is my first Black P setup... 80 degrees, 150g tall, feeding black worms mostly with some ghost shrimp roaming, and occasional rosies with 2 mystery snails on cleanup.