Angels only eat fish the size of Neons, and only when the Angels are big enough to eat them. Congos get to be too big for Angels to eat and I don't think they eat Black Widows. Black Neons, yes. Same size as a regular Neon.
No these black tetras aren't small the long finned tetras are about 1 1/2" to 2" long and the regular black tetras are about 1 1/2" long. There no where near the size of neons but the tetras in my 10g are since there are only x-ray tetras and red eyed tetras now they are about the same size as a full size neon. Also there is a person in this topic ttp/www.fishforums.net/index.php?showtopic=119717 said that if the angels were aggressive towards themselves or other fish to turn the temp down to 75F and that would stop aggression do you all think this is true and is there any harmful effects of it?
Durbkat, you most likely have black skirted tetras and longfinned-black skirted tetras. They would be fine to put in your 55 gallon with your angelfish.
Durbkat, you most likely have black skirted tetras and longfinned-black skirted tetras. They would be fine to put in your 55 gallon with your angelfish.