2 issues- Algae and Dying torch

[Aquattro]

New tanks can do the algae thing, not a real concern at this point.

A temp of 78 +/- 2 is a pretty big swing, not what I would call stable.

Almost 0 Ammonia is bad. It should be 0. Period. If it's not, you're tank isn't cycled yet or your test kit is off. This could cause coral loss if it's actually present. Check the test kit.

What are your water changes like? volume, frequency?