Nice update! Glad you skipped the ugly phase, it's such a bummer. I use Vibrant to sort of skip such a thing, but you still need grazers. I thought you were going mostly SPS, I must have you confused with another build thread. Any plans for Acropora sp.? Your lighting is my holy grail as well. The LED strips for pop and fill PAR coming in at a lower angle on either side are crucial. Looking forward to seeing pictures once it's fully installed! I would have done the same with my setup, but I would have needed 6-8 250w Radiums (330w), over both tanks (5280w total). I didn't want to install high volume fume extractors to remove the heat so I went with LED/T5 instead. I'm deciding on lime reactor versus still reservoir myself. Fully planned on a still 100g reservoir because that's what Randy HF recommends, but it's really tempting to save space and potentially CaOH if I mix in too much every time versus just dissolving it over time like the reactor. Why do you think LDPE would need much more frequent replacement? High pH causing degradation or something? We want pics! Thanks for the detailed update!