I think I will be geting a pinpoint to not worryr about getting an inaccurate measurement.
As for my 300g into salt, I added everything up, such as live rock, the skimmer, more pumps/stronger pump,etc, and it would total me to just about 2 grand. Since I'm a student with a low-paying job that would take a while to pay for,lol. Unless I can find some way to get some extra income on the side then theres a better chance of that tank going salt sooner. I'd love to go saltwater on it since I look at my 20g salt more than that big one. We are enclosing our patio this year, so I'm hoping that we can get some solatubes to save on power and MH's.