Be adequate with what you are asking for. You have the right to get paid fair salary. What investors may worry more then a few grands of salary raise, is how

Be adequate with what you are asking for. You have the right to get paid fair salary. What investors may worry more then a few grands of salary raise, is how to keep your attention on the startup as much as it's only possible. If you're underpaid and cutting your expenses, you can't be a good person to develop a strategy on spending invested money. Know your value and you'll be fine.