i'm running a 75 system with 20 gal sump on an ASM G-1. It pulls a good puddle of junk daily, and nitrates are 0, despite lots of pooping animals (and microbes, i imagine).
the asm people rate their pumps as such: g-1 100 gal, g-1x 150, g2 200, g3 250.
why would you need a skimmer over-rated for a tank system, especially if you're keeping your chemistry in line? (this is a real question, not meant to be as chastising as it may sound)
underlying this question is a larger one i've been thinking about
:
is there a formula to tell you how much skimmate you should pull in a period of time (eg 100 ml/day for "moderate", 150 ml/day for "heavy skimming")? This would have to take into account system volume and bioload, as well as other factors. Given this, should we be able to create such a formula so you can tell if you're doing a good job of skimming?
just wondering...
doog