Is it reasonable to use the bot with 0.02 btc?
Sure! With maybe 2 or 3 pairs maximum.
But small amount, tiny profits.
And trying to understand and to optimize the engine is a long learning curve: you may gain zilch - at the best - or even loose during this process.
In short, this is very small to start.
I'd recommend to do it only if you can add some more funds later on.
Otherwise, manual trade with your full amount is another option to consider.
