I want to try my first HQI MH light for a planted tank. I have an opportunity to get one of the Aqua Medic Ocean Light 1x150 setup's [example] from an acquaintance very lightly used.
I have no direct experience using an MH, or pendant style, but I reason that I can adjust the height to get even light coverage of a tank. That said, what size tanks would it work for?
Also, considering it is 150W, could it be used over a smaller tank, such as 10, 20H or 29 gallon tank? Obviously high-light, but was not sure if 150W MH raised above the tank to get even(-ish) light coverage, worked under the "watt-per-gallon" rule-of-thumb.
Considering it's not a wide dimensioned light fixture, am I right in reasoning it would not be a great choice for a 20-long or tank wider than say 24" or so? This is COMPLETE guesswork on my part.
Lastly, any issue with using a 10K bulb on a freshwater tank, as far as plant growth is concerned?
I would greatly appreciate any input, feedback and experience to help me. Thanks!