If you want to try and clean that sump I would fill it with water and a gallon or so of white vinegar. Thats how I clean all my pumps rock and tanks. Just fill it and let a pump circulate water for 24 hrs or so and it should get all the old crud off the glass. I am interested to see how this turns out!
Looks Amazing! If I didn't know I would say its a new tank setup! That ATI is waiting to get unwrapped and running!
Yeah it took a lot of elbow grease but I finally got the wife's approval to bring it in lol. Just got done drilling wall mounts now I just need to figure out what bulbs to buy :/