I have a 125 (5') tank I am getting ready to setup and it has a 55g sump under it. I am thinking of drilling it myself with one of those glass-holes kits. I am having a hard time deciding if I should go with one big return pump in the sump to power the whole thing or that plus another powerhead in the main tank for augmenting the main return. The 125 already has PVC around the top edge with "powerheads" at each corner, so I could run that off of the return pump or the powerhead. Just trying to figure out how much flow, how to get the flow, what size holes I need to drill, and most importantly how to make things failsafe where if I loose power the sump wont overflow etc. Also, quiet is going to be important as its in my tv room. I AM going LED for lighting so heat shouldnt be as big of a deal (thinking in water return vs external). How do I figure out how far down to drill on my main tank, then in my sump, do I want it plumbed directly into the tank (drill it as well), or just let the water pour into the sump etc..
TIA! Cant wait to get back in it!
TIA! Cant wait to get back in it!