- Joined
- Aug 18, 2026
- Messages
- 41
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- What state or country do you live in
- New Jersey
Hello everyone,
I ordered an IM 100g EXT that should be here in a couple of months. Dimensions 47.2"x23.6"x19.7". I intend to run a mixed reef for a while with softies and LPSand after about a year I intend to start adding in SPS. BRS has the Giessman v12 Pro Iridium on sale right now for 25% off. But the 48" is out of stock leaving the 36".
My first question is if I go with the Giessman Aurora v12 Pro Iridium 36 inch, would this realistically give the the coverage I would need since the tank will extend 6 inches beyond the fixture at each side? Giessman recommended suspension height is about 12 inches. I assume it is fine as my current scape plan doesn't have real estate high on the outer rims of the tank. But I am aslo assuming that the light should radiate enough to cover those areas enough if I ever add corals there. Which would likely be LPS or soft as I guess PAR would be lower. I don't foresee shadowing being an issue unless I were to put some SPS on the sides.
I would assume that this light may be overkill for the first year but I don't want to upgrade after a short timeframe.
Secondly, it comes with a 1 year warranty. Any have issues with quality over time? Hard for me to believe in a product with a short warranty.
I ordered an IM 100g EXT that should be here in a couple of months. Dimensions 47.2"x23.6"x19.7". I intend to run a mixed reef for a while with softies and LPSand after about a year I intend to start adding in SPS. BRS has the Giessman v12 Pro Iridium on sale right now for 25% off. But the 48" is out of stock leaving the 36".
My first question is if I go with the Giessman Aurora v12 Pro Iridium 36 inch, would this realistically give the the coverage I would need since the tank will extend 6 inches beyond the fixture at each side? Giessman recommended suspension height is about 12 inches. I assume it is fine as my current scape plan doesn't have real estate high on the outer rims of the tank. But I am aslo assuming that the light should radiate enough to cover those areas enough if I ever add corals there. Which would likely be LPS or soft as I guess PAR would be lower. I don't foresee shadowing being an issue unless I were to put some SPS on the sides.
I would assume that this light may be overkill for the first year but I don't want to upgrade after a short timeframe.
Secondly, it comes with a 1 year warranty. Any have issues with quality over time? Hard for me to believe in a product with a short warranty.

