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yajur
07/04/2011, 07:44 AM
now i have 2*150watt 14k MH it hangs 14" above from the tank and the tank height is 30".

Now iam running 2*150watt MH light for 7hrs and my question is in that same fiture i have 2*54watt light

after running 7hrs of MH can i run this 54watt*2 light at evening time for 2hrs to 4hrs will this cause any alage issue?
crvz
07/04/2011, 08:15 AM
algae issues would not be determined solely by the lights. You can certainly run the t5 bulbs longer than the MH. Algae would come into the picture regardless of that amount of extra lighting if there are available nutrients in my experience.
yajur
07/04/2011, 10:07 AM
algae issues would not be determined solely by the lights. You can certainly run the t5 bulbs longer than the MH. Algae would come into the picture regardless of that amount of extra lighting if there are available nutrients in my experience.

Thanks for some value point :)
crvz
07/04/2011, 07:54 PM
My pleasure. Also, at 30" depth, the 150W bulbs are on the lower light level for many corals or photosynthetic critters. What do you keep in the tank?
yajur
07/05/2011, 01:15 AM
My pleasure. Also, at 30" depth, the 150W bulbs are on the lower light level for many corals or photosynthetic critters. What do you keep in the tank?

i have open brain,favia brain,mushroom,cat eye coral,leather,finger,yellow plate coral only

i dont have any sps corals so i this light enough ? or still i need high watt ?
crvz
07/05/2011, 07:13 AM
what are the other dimensions of the tank? for those corals the 150W are probably good.