Hi all, Ive been cycling for three weeks with a big old Eheim filter. I have so far added 11 juvenile fish 6 demonsai, 3 salousi, and two others whose names elude me, I'll have to check my book. All have settled in really well to thier rio 180, loads of hiding places in all the ocean rock. Plenty of trilling and establishing whose boss. (that would be the big Salousi male. A demonsai is definately second in command). They are amazing and i look forward to all the shinanigans they will get up to.