Hi all,

Love this ATS and S.M. for pushing people tu use it !

I am putting in place a new small reef tank, it's a 50x50x50 (in centimeters) with a bow front and has a sump in its back, like a Red sea max, but with a 150w MH light.
The water content should be around 95 liters and 10Kg of LR.
And of course I am seriously thinking of fitting an ATS to it (in IT).

Main goals and benefits from what I understand:

_Mechanical filtering is done bay algae (no floss)
_Chemical filtering as well (PO4, NO3, etc....and no SKIMMER)
_Added O2
_Cooling when fan added (with 150W MH on a small tank it's very good)
_Less water changes to remove harmfull stuff.

So my questions are:
_If I use a the benefit of cooling the tank with the ATS, I'll need to add RO water to compensate, and if there is less water changes I need to add Ca+Mg, so can I compensate with direct TAP water ran through a carbon filter (to remove chlorine and other stuff) to avoid using kalk water ?

_What screen size should I use to have the best system ,and flowrate ?
_the tank is empty for the moment and it will be started withing the next weeks, so I understood I can start straight with an ATS rather than Skimmer and floss, correct ?


Thanks for the help and long live MS !