Hmmm Odd.

So last night i drank 2 bottles of water, at my first attempt at remembering my dreams, i repeated to myself that i would remember them before going asleep.
i woke up in the middle of the night and couldn't remember a thing, went to the bathroom, feel back asleep. woke up a few hours later around 6 and still did not remember a thing.
I stayed up for a bit and eventually went downstairs to take a nap on the couch, i woke up on the couch remembering a dream. didn't record it but fell back asleep soon after and when i woke up, remembered a second dream.
Was this a fluke or do naps usually help you remember dreams? And how many dreams should i be able to remember before moving onto actually trying to induce a LD?

Since you are already in REM, when you nap you instantly jump into a dream.
Naps tend to be a lot shorter than sleeping at night, so when you wake up you tend to remember most of it.

So... Do you keep a dream journal every night? I think that would definitely be the #1 step in remembering your dreams. Even if it's just a feeling. Having the focus every morning to think about what you were dreaming about and writing it down helps. Reading your dream journal before you go to sleep also helps induce lucid dreams, helps you find dream signs that help induce lucid dreams.

Well I don't believe the water had anything to do with it other than getting you out of bed. Like what mrdeano said, if you take a nap a short time after sleeping, you'll likely remember more detailed dreams, because your REM periods haven't completely checked out until you've been awake for longer than 4 hours. So your REM periods get longer and longer as the night passes and can transfer to a nap if caught within a 4 hour time period.