I have a 220g (so probably 150g? Total) tank, a 50g (maybe 40g actual) refugium and a 150g stock tank sump (probably around 100g).
I keep trying to figure out how to make a return pump area to limit evaporation in the 150g. Should I care? If the entire 150g stock tank (filled to 100-ish) was the “return” portion of a traditional sump, would it cause salinity swings before the ATO kicked on? ATO is a Tunze.
Right now I’m looking at $500 for a custom acrylic tank to sit inside. A 20g H is too big to allow for a skimmer. A Rubbermaid gat age can is too.
I’m racking my brain on this. Stupid math says for every 1/4” of drop in the sump, it’s about a gallon total water loss. I don’t know how sensitive the Tunze (or any ATO) is or what a gallon of evaporation means in a 300-400g system.
I keep trying to figure out how to make a return pump area to limit evaporation in the 150g. Should I care? If the entire 150g stock tank (filled to 100-ish) was the “return” portion of a traditional sump, would it cause salinity swings before the ATO kicked on? ATO is a Tunze.
Right now I’m looking at $500 for a custom acrylic tank to sit inside. A 20g H is too big to allow for a skimmer. A Rubbermaid gat age can is too.
I’m racking my brain on this. Stupid math says for every 1/4” of drop in the sump, it’s about a gallon total water loss. I don’t know how sensitive the Tunze (or any ATO) is or what a gallon of evaporation means in a 300-400g system.