With your plants and lights, I wouldn't be dosing much. Comprehensive is probably all you need to dose. Should have everything you need. Dosing excel wouldn't hurt, even in addition to your co2 injection.
Siamese Algae Eaters will eat hair algae and bba. Amano shrimp will as well. But, don't rely on the animals to keep it clean -- you need to get your nutrients balanced.
EDIT: Jeta's idea is fine as well - you could stop dosing altogether for awhile, and wait for deficiencies, if any to show up. You aren't growing a lot of demanding plants, and your lights aren't over-powering, so you may not have a need to dose anything at all.