siskiou Posted June 17, 2006 Share Posted June 17, 2006 My 20H has been doing really well, but lately I've notice that the orange monti cap is getting lighter. It's still growing just as much as ever and nothing new has been added in ages. Parameters seem fine 0/0/5, temp 79, SG 1.025, Ca 450, alk 9. Lighting is and always has been 130w pc, half 10000k/half actinic. Bulbs are about 10 months old. Could it be time to change the bulbs? Quote Link to comment Share on other sites More sharing options...
Lowman Posted June 17, 2006 Share Posted June 17, 2006 what's the ph? Quote Link to comment Share on other sites More sharing options...
siskiou Posted June 17, 2006 Author Share Posted June 17, 2006 Sorry! Forgot the pH! It's 8.2-8.4. Quote Link to comment Share on other sites More sharing options...
Chief Posted June 17, 2006 Share Posted June 17, 2006 I could be wrong but I think PC's only last about 6 months before they start losing their spectrum. I would change your lights and see if you get some color back. Jay Quote Link to comment Share on other sites More sharing options...
reefboy Posted June 18, 2006 Share Posted June 18, 2006 yea need to switch every six to eight months stuff will start to brown out and certain micro algaes will take off due to the fact your bulbs are going more to the red spectrum which they like:D Quote Link to comment Share on other sites More sharing options...
siskiou Posted June 18, 2006 Author Share Posted June 18, 2006 Yep, thanks! I've changed the bulbs. BTW, where do you all get your replacement bulbs (pc) and what brand do you use? I need to change out the 96w :: in my other fixture soon. Quote Link to comment Share on other sites More sharing options...
reefboy Posted June 19, 2006 Share Posted June 19, 2006 i get mine from local shops or online usally corallife brand i presonaly dont use but clients use on smaller systems i maintain but its much less hassel if u buy from local shop because somtimes bulbs are bad so worth the little extra $ plus your supporting a local shop and if bulb is bad they replace on the spot ware as you have to ship and wait for online company to reship back i only buy online if buying large quanitys at a time. Quote Link to comment Share on other sites More sharing options...
reefgeek84 Posted June 21, 2006 Share Posted June 21, 2006 hellolights.com. Awesome prices and the best customer service one could dream of. Quote Link to comment Share on other sites More sharing options...
Reefin' Posted June 21, 2006 Share Posted June 21, 2006 if money is an issue and cant go to LFS, then check this out....ive bought retro kits and many bulbs years ago from this guy..good customer service and low cost http://www.ahsupply.com/bulbs.htm also has good retro kits if you were needing to replace that 2x65w that went bad.....ballast are fulham ballast same as workhorse....thats good.... Quote Link to comment Share on other sites More sharing options...
siskiou Posted June 22, 2006 Author Share Posted June 22, 2006 Thanks for all the advice! Quote Link to comment Share on other sites More sharing options...
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