Hydro Draw???? Help

[Jaws]

Hey guys. My hydro bill is consistently high every month and I'm trying to narrow down the culprit. I know the fish tank is usually a pretty big contributor but I don't really have a whole lot running on it right now so I was wondering if I listed what's running, maybe a couple experts could chime in and let me know what they think the monthly cost would be:

Four 36" - 39W T5 bulbs (on 8 hours a day)
One Bubble King Supermarin 250 Skimmer (75W)
One Reeflo Tarpon return pump (200W)
Two Tunze 6105's (35W) only running at 60%
Two Tunze 6055's (18W)

That's all that's running.

I live in Victoria BC if that helps with rates. Thanks in advance for anyone that can help out.