no, I dont think that is too much. Although the price is a little steap. I had 175 watt on a 30 tall but I dont think it was bright enough. Get the most light you can. You can always raise it higher.
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. Thanks for the reply. If you have a source? Please let me know. I have 2 x65 right now on the 20G and I might just buy 150MH alone if I can make it fit. ANy suggestions for cheap purchase are always pleasing to my wallet!
Mc