fish,
sorry I wasn't around, PM me next time, it might get my attention quicker. Ok, I will do this as simple as possible, here is why I did not buy halides and did the nanotuner:
Clean look of closed hood
I have three cats
I will soon have a child running around that could throw stuff in open top tank
How hot halides burn
I have a bird we let fly around the house- but he doesn't fly so well..
Cost of halides- both purchase and electrical bill
How much light protrudes out of the sides with halides
did not want an open top
did not want to build a top
Now why I should have bought halides:
.....can't think of one yet.....
...sorry had to do it
Everything that requires a lot of light is only a few inches from top of tank. This requires water changes from DT and sump areas. I do not like exposing the clams to air as it can trap air inside them. I may just be the exception to the rule with keeping clams and sps (and a Mandarin). I have shown growth with all my critters although some say not terrific growth. Hopefully I have answered all your questions and apologize for not getting to you sooner. Nissan saves the day by PM'ing me...what a guy!!!
also, they may have changed the upgrade but use the reflector from the stock to help the lights reflect some light back.