Well, the eggs ended up with too much calcification to be viable. Or, as is also possible, the male may have not properly fertilized.
Regardless, they spent 3 days tending to them. On the 3rd day they started to bicker and tried pushing each other out of the way. Shortly after that they were eaten.
Actually, Im not at all crushed about it because now I know the Heckel is a female and that I have a pair. This is half the battle of getting discus fry, trying to get a a mated pair ( and a pair worth breeding).
I tested the TDS and it is sitting at 125. This may be the problem-- too high. I am going to use R/O and tap and bring this number down to between 50-75 TDS. Also, will add some catulpa leaves to acidify the water. Turn the temp up from 82-84. Then, that done, will add some cooler water 79-80 degrees to mimic seasonal rains-- which-- supposedly-- is supposed to induce spawning.
I have a plan.
Now, if only they will comply.