[250G]

Thanks Michael.

With regards to the lights, I change out my 20XM halides every 11 months. I have not heard of these only lasting 6 months, although I have heard this about Radiums. I change them every 11 months and there are no visual indicators that they need to be changed (visually to the eye, or the tank inhabitants). XM bulbs are the only 20 bulbs I have used - in the last 5 years I went from 10 Ushios, to 10K XMs to 20K XMs. I have only tried these. Different colours pop with different lights.

With regard to supplements, the way I wrote it up in the article is the way it is. Only supplements in my ystem come from my calcium reactor. Remember I do not have that many fish, and that I only feed flake food and spirulina pellets to the fish. Alot of people make comparisons to my tank to zeo systems...

Ironically, I did do a water change last week (2nd in as many years). Guess what happened - a colony RTN'd, have not had that happen in over a year. Thank got it was not a "premium" colony.