I have a 65k cfl spiral bulb from Lowe's on my chaeto and mangrove fuge. It's 40 watts (only uses 9w elec.) is the wattage too high for chaeto? Fuge has been up in sump chamber for only 17 days. Ballpark on when I'd notice some growth? One more question: How far from chaeto should the light be? Thanks, Ann Marie