Honestly you can try tankmates with a flowerhorn depending on his personality but FH are easily the most agressive cichlids towards other fish I've owned outside of a dovii (and I've had over 75% of the top 10 agressive cichlids). Some aren't overly territorial and females should be fine in a community setting but my 10" alpha male from the SRD fry I grew out surprisingly punked my dovii like crazy in a 240g until he got his 100 back (although the dovii's jaw would've eventually overpowered the fh). I would DEFINITELY spend the extra money on shipping because almost everything on CL and at your lfs will be very low quality, but if you get a fish that's been divided its whole life you won't have much luck with any tankmates long-term besides a female. Your best bet would be getting a 2-3" male from aquabid and keeping him with slightly larger cichlids that can hold their weight (mine tried to kill a pacu twice his size before I took him back out so unrelated fish won't really work), or if you want a pair just get a small group of juvies and sell the ones that don't pair. I saw a group of 6 KK on aquabid yesterday for $100 and shipping costs are only from the nearest transhipper to your house instead of all the way from Thailand lol
