Tom500;2554211; said:
No active fish even more than ever, you cant keep more because the surface area of the 110 is the same as the 75 so the same ammount of diffused oxygen in the water, but more volume so even less oxygen than the 75G actually so the 110 is goin to have even less diffused oxygen and so less active fish not more.
Buy it to give your fish a tad more room for manoover but dont buy it to add more fish!
Think about it its fairly simple
While it may appear that you can keep more fish you cant really especially if they have a high oxygen demand its just your perception.
you missed my point.
the point is that there are more variables in stocking levels than just footprint for gas exchange. Water volume is also a factor.
this is because the dissolved oxygen level we keep in our aquariums, whether it is a 75 or a 110 with the same footprint is in excess of what fish need to thrive.
even though the surface area to volume ratio of a 75 is more favorable for gas exchange over the 110, the difference is minimal.
dissolved oxgyen levels in a properly maintained aquarium should never be a concern.
its only a problem if your water quality (via nitrites, ammonia) prevent the uptake of oxygen from the water by the fish (ie ammonia can burn the gills and nitrite ions bind to hemoglobin to prevent oxygen uptake) etc.
when you hear people having problems with overstocking, its not because their dissolved oxgyen levels are too low.
its often because of other water quality issues that prevent the fish from taking up the available oxygen in the first place (something that an extra 35 gallons of water will help to prevent via extra dilution power)
I am not saying you can go crazy with a 110 vs a 75.
but you certainly can put a few more fish in the larger tank without a problem..