The Planted Tank Forum - View Single Post - Par30 and Par38 Users
View Single Post
post #1 of (permalink) Old 11-28-2012, 03:04 AM Thread Starter
Algae Grower
Mostro's Avatar
Join Date: Aug 2012
Location: Iowa
Posts: 49
Par30 and Par38 Users

For those hanging Par30 or Par38 bulbs (21-36w) over their tank, how much shimmer are you seeing? At what height does the shimmer diminish or disappear? I likes me some shimmer (MH lighting over a reef is one of the memories that brought me back to the hobby) and it's one of the reasons I've been planning to use these bulbs.

However if it can't be had (the shimmer, that is) at the height I'll need to hang my pendants for good coverage (roughly 32 inches over the substrate on an 18" tall tank) I might just as well plug in a Finnex Ray 2 and call it a day. Those seem like great units, but with such a diffuse coverage of 1w emitters, don't have the point source output that will satisfy a shimmer-head. Or so it seems.

If you had to identify, in one word, the reason why the human race has not achieved, and never will achieve, its full potential, that word would be "meetings." óDave Barry
Mostro is offline  
For the best viewing experience please update your browser to Google Chrome