Help with levels

[TheGreatOne]

Hey everyone,
I was just wondering if there was any other way to help with the levels other than just doing the water changes. For the short time in which I have had my tank I have been doing about 10-15% water change at lease once a week and also did a 50% water change when I first got it. I bought a test kit and the initial readings were a little high and got me a little worried.
Temp 78
Salinity 28 with 1.20 gravity
Phos 5
Nitrate 40
The phos and nitrate is what has me worried. Any help of advice that anyone has to get my levels to where they need to be. I am aware that the salinity is a little low but I will bring it up slowly when I do the water changes until it is where it needs to be.

 

[LetItReef]

Cut down your feedings for now, maybe bump up CUC. How many fishes and lbs. rocks do you have?

 

[TheGreatOne]

I have 2 clownfishes. 1 chalk bass, and 3 blue/green chromis'. I also have 30 pounds of liverock

 

[Reefing Madness]

Vodka Dosing by 'Genetics' and 'Stony_Corals' - Reefkeeping.com
Dosing Vodka: Why? | Melev's Reef
Reefkeeping Magazine - Vinegar Dosing Methodology for the Marine Aquarium
Seaklear Phosphate Remover | eBay

 

[TheGreatOne]

Thanks everyone for the information and help. I have done some reading about the vodka dosing but can't seem to find the amount to use for the different size tanks. I know this is prob a stupid question but I know I need to lower my Nitrates but do not want to hurt my fish or get them drunk.