Looks like you have a Maroon Clown and a PJ Cardinal. Those guys should be able to handle every other day feeding but if you plan on getting more fish soon then you would mostly want to switch everyday. Fish like tangs, angels, wrasses, and others really need to eat more often, I like 2-3 times a day with small portions.
For the algae id tell you to get a bunch of turbo snails, a dozen or so, they can really mow that stuff down. Test your water for nitrates and phosphates as they are algae fertilizers and get them down with a series of water changes if they are high. A foxface rabbit fish, the regular yellow or the red fin metallic are great for algae as well though they would need a tank size upgrade at some point.