We all know that Multiple tangs in any tank is always hit or miss. Better chance if different shapes, color and genre. Sometimes groups of 3 or more of the same species, ie 3+ yellows, will work as aggression is shared more widely. Need big tank for that of course. We also know that the bigger the tank the more of a chance that success can happen with multiple tangs. Yellow and hippo blue co exist often in set ups.I have a 625g tank that just completed its cycling. I will move slowly now with adding fish. In about a month or so I will add tangs on same day. Likely will try to get them all around the same size....Will add the hippo first, 1 to 2 hours later will add the Gem, yellow and purple at the same time and hope it works. If after some days they don’t coexist, I have a plan B which will be to set up a mirror as I’ve had success putting a small mirror in the outside of a lower corner of the tank which allows for the more aggressive tang to take out his/her aggression harmlessly. Plan C will be to remove whoever is the aggressor....Likely the Purple but we’ll see. Opinions and feedback welcomed! Thx


