Maybe you could do it but you need to have a huge capital for example you could get a small profit and fix the amount that you want,
If you want $50 then it depends on your capital for example 1% profit in $5,000 but again it would be risky specially in this market.
I think it's works well with people that have high balance because they can buy bulk coins then sell it quickly if it reach at least a good short wide spread. The only downside is it's super risky if you try that with big amount. Maybe you just need to practice at low balance and try if you can profit. Then just try with high balance if your are confident and not afraid to lose.
From my experience, playing it relatively safe you would need about 2000 USD II to make on average $50 a day, however I don't limit myself to day trading and I suggest you don't either. All professional traders know that. If you want to maximise your returns, you would need to consider long term trading as well. With cryptos it is relatively painless as there are no overnight fees on exchanges, so even if I assume to open a day trade position I would leave it overnight if the trade needs more time to develop.
Exactly on point SportsbookBettor! By trading small amounts for a last few months I am able to predict what is going to happen if my account is 10x larger than now. Really good reality check before you put a lot of money into this volatile market. Btw never stick to only one pair unless you're glued to the monitor nearly 24 hours/day. It is way better to trade several pairs i.e. if my USDT-BTC trade is not going my way and I can see that it is going to take a while before market turns around I'd open counter-position (if I went long I open short and the other way around) to minimize loss of the trade gone wrong. Also, some altcoins go against BTC and some go along (as long as BTC is not in total bull ride and alts go red). It is worthwhile to recognize them and then trade them according to market trend.