My electric bill has increased $50 per month, water is around $7. Food & various other supplies runs around $40, so it totals up to around $100. This doesn't include any upgrades, I've spent $200+ on this alone some months.
A good month selling fish brings in $200, these are few & far between. Some months nothing sells. If I got totally into keeping records I could tell for sure, I'm probably just breaking even.