Thanks for the replies.
Sorry Edmonton Eskimo, I don't understand your post. I thought halogen bulbs were MH
? And I don't have a ballast, least not that I'm aware of. Though I'm not entirely sure what a ballast is in the context of marine tanks. I conceed that I know little more about lighting other than the system I currently run, which works. My motto: Unless it's broke I don't fix it.
Sorry - me being un-clued. I've only had my marine tank for a little over a year now and so though I've done a lot of research I confess I only know about the stuff I have in my tank and any planned upgrades or additions. I think there is that much to learn I could speand a lifetime doing it and still fall short of expert. Fascinating subject.
Anyway, I did some more research after asking this forum. Discovered that its unlikely that i'm going to be able to find the right K
values. I now understand that if i don't get the right K
value my tank is either going to look very yellow or very cold and none of that is good for the corals or my viewing pleasure. So I've ordered all the correct replacements and will add them one at a time over a period of months.
Thanks for all your help.
The bulbs were there when I had the tank (bought from a friend who was moving to Italy) I haven't replaced them yet (its been on my to do list) and I'm uncertain how old they were before (the tank being established for 2 yrs before that). So they could be 3 years old! (I'm guessing 2 though)
I know I should have replaced them earlier but it seems daft to when they still work nothing is suffering and they're that expensive.