I've tried 74 all the way up to 82. I have 6 in a 75 with 3 plecos , 2 48 tall ones I have cycling with guppies, and a empty 55. I want to use those for breeding. I have 2 5g,10, and a 20 for grow out tanks but they won't lay eggs. I use spng filters and mag slate and reg. slate. I think they are just retarded. They act like they are going to pair off then its like he forgets when he starts chasing the other ones. I thought about putting them in one of the other ones but I want to make sure they can do their thing before I go changing things on them. My water ph 7.5 after airated for 48 hours cause the co2 and kh is usually about 40 to 120ppm and gh is 120 to 180ppm. My water sucks but I really don't think it should mess with them spawning. I know after to put eggs and fry in ro. They are about 9 months old so maybe they just adolesants. Let me know what ya think.
