How often do I need to replace my bulbs?

[jbaeza83]

I have a JBJ 24G nano with PC's. How ofter should I replace my bulbs? They are both working right now and seem bright. Do I need to replace them even if they are still working? or should I wait until they burn out?

 

[danagui]

i replace bulbs yearly...keeps ur par levels up

 

[gumbii]

pc's once a year... at least... T5's... depending on bulb type, some every year, or every 6 months... metal halide... also depends on bulbs... some last a year, some a year and a half...

 

[jbaeza83]

Ok, next question, I am running my lights about 10hr a day, but now im starting to get green algee on my rock. I have a combination of live rock and clean dead rock (nothing on it, besides the algee now). Am I running my lights too long or is this normal? Also my live rock is building some algee but not as much as my dead rock.

 

[danagui]

Reduce feeding and lighting hours and get a clean up crew lol

 

[johnnyg87]

How about MH 20k 250w ?

 

[gumbii]

Ok, next question, I am running my lights about 10hr a day, but now im starting to get green algee on my rock. I have a combination of live rock and clean dead rock (nothing on it, besides the algee now). Am I running my lights too long or is this normal? Also my live rock is building some algee but not as much as my dead rock.

if it's really bad, cut down the light by a lot... like 5-6 hrs a day... corals don't need more than 6 hrs of light anyways... well, if you haz any...

also, the dead rock might still have some nasty dead stuff rotting in it... so it could be causing your phosphates to go up... so feed less and less light will hook you up... clean up crew will speed up the process...

Reduce feeding and lighting hours and get a clean up crew lol

this...

How about MH 20k 250w ?

depends on the brand brother... also depends on how long you have them on...

 

[johnnyg87]

depends on the brand brother... also depends on how long you have them on...

ushio 8hrs a day.. what would you say?? I saw somewhere it said 8000 hrs, but it wasn't specific on how many hrs of run time a day.

 

[gumbii]

ushio 8hrs a day.. what would you say?? I saw somewhere it said 8000 hrs, but it wasn't specific on how many hrs of run time a day.

if it's say... a 20K... it will be very noticeable... but i'm not sure... i'm sure those last a long time... but you'll see the difference when it starts to be a bit brighter, and more towards the white/yellow side of the spectrum... 8hrs a day should last you at least a year...

 

[johnnyg87]

if it's say... a 20K... it will be very noticeable... but i'm not sure... i'm sure those last a long time... but you'll see the difference when it starts to be a bit brighter, and more towards the white/yellow side of the spectrum... 8hrs a day should last you at least a year...

Thank you