Ok...Little update. Seeing as though I bought this tank used it had a scratch on the front pane. I put a sticker on the trim so when I drilled it I could drill the scratched side. Well unfortunately I drilled the wrong side... I thought I could live with the scratch but it just fills up with algae and when I clean my front glass I have to use a razor blade to pick it out of the scratch, major PITA (also a pretty bad eyesore)! I was thinking I can build a new tank. About the same size only a little shorter, say 48x20x24. I would also like to use the C2C overflow again, except this time make it external so it doesnt take up real estate inside the tank. I would like to use black caulk and possibly go rimless. I would also like to plumb in a closed loop and take advantage of this extra Iwaki I have laying around. I have never built a tank on my own, so I have a few questions...
1. What kind of caulk should I use, I would prefer black.
2. Does the caulk just get squeezed into the corners or does it also go in between the panes.
3. Could I go rimless, if so how?
4. I have an Iwaki 40 as a return now. Would it be ok to use an Iwaki 20 as a return and use the 40 as a closed loop?
I am sure there is more questions but these will get me headed in the right direction...
~TIA!!