propagation system for sps.

[djbh]

Hey Mark,
Have about a whole wall 12 feet.Was actually thinking about having my 55 gallon on a stand with my 25 gallon underneath as the main filtration tank.However will a 25 be able to support the whole system?Both tanks are not drilled,but will do so. I Have a diamond drill bit.Was actually going to buy a 40 breeder ,but saw an add for a 55 gallon.It is new,no scratches,6 months old.45$ So I took it.
Was thinking of going bare bottom in this one with eggcrate to elevate the frags in stages.
Lighting will be 1 250 MH Iwasaki,with 2 actinics.
Over the sump NO Fluo.
The thing is the 25 is used presently to cycle 60 lbs of LR,The sand is well stocked.
Hate the sound of overflows(external) will definately use a corner overflow in my 55,however do not know if I am going to use in sump or inline return pump.Might go for a mag 12.
What advantage or diadvantage is there in having the 55 feed the sump or vice versa having the 25 feed the sump.
If propagating I guess I should need the largest space possible.
Have seen people using 25 gallon tanks as prop tanks,but with LR and sand and all it gets crowded.
However have been told it is best to prop sps in a main tank which is well established.???
Want a prop tank so I can frag,trade.My current tank has 20 sps frags,with 4 large colonies.Want some place for them to live quiet and to grow,without competition.

From your experience is a prop tank better off without fish,snails(astrea,nassarius),crabs(emerald).

My 35 gallon tank is established for over 3.5 years,should I leave it be or use it.Is it worth it for the extra gallons.

An ideal setup would be to use all 3 tanks.
The 55 25 and 35.
lots of questions.
Would like to do it right from the start.
thanks
Dan