Aloha, been away for quite sometime now due to health issues. I have 100 cardinals in a bowfront tank with 5 adult female discus non breeders and have never had a problem. Ive also had rummynose tetras and emarld eye rasboras. The only placos in this tank is Bns. Most others will feed on the slime coat of the discus or disturb them as they are most active during the night. Angels will out compete the discus for food therefore some will not get what they need to stay healthy.
Right now if your looking I have a group of discus I would like to sell to make room for some of my Leopard fry and some Leopard SSs also. The ones for sale are Red melons and some violet reflections.
If you want you can cotact me at 402-721-6287.
Hope I can Help you more, Ike
