acid blends??

Went looking for acid blens the other day but my LHBS don't have it!!! I can get citric acid maltic acid and have tartaric acid but how do I know what to use and how much of each.... do I need to figure what acid is most common in the fruit i'm using and add that or can I make my own blend???

You can make your own blend, or use what you want. I think most acid blends are something like 50% tartaric, 25% malic and 25% citric, but I'd google that to make sure because my memory is so bad.

You can squeeze a lemon to add citric acid to your must- I do that with some dandelion wines.

You can go by taste, and add the acid blend after fermentation if you want. If the wine is "flabby", you can add a bit of acid and it brightens it right up.