ok so a while back my sisteer got a marble angel and some glo fish from the lfs and just gave them to me cause she is to lazy to take care of them and all i have set up right now is a 20 gal long to put them in cause i have large fish in my other tanks and im using this as a grow out tank the fish i have in here are 1 aff cic 1 albino channel 1 lace cat 2 pictus cats 1 columbian shark cat and 1 dwarf gourami and 1 3 inc oscar they all have been in here for a month and dont fight and havnt been agressive i was wondering if the angel wuld be ok in here untill i can get another tank to put him in