live rock

T

thomas712

Guest
Check your calcium and alkalinity levels, chances are there is something wrong with your water chemistry.
 

fmelindy

Member
If it's new live rock then it's just a normal thing to have happen to coralline algae while your tank is cycling, from what I understand. Give it a few weeks after your tank has cycled and the purples and reds and other colors start to come back.
 

lilredcmc

Member
thanks for the replies. the tank has been up and running for several months and gone through a cycle. for right now we just have the bulbs that came with it. there are 2 -- 18inch florecents -- 15w.
 

ricecookie

Member
30 watts is not enough for live rock. I had the same setup that you are running for about a week with ne w live rock. There was a LOT of die off. I just got 145 watts of PC lighting and already the live rock i scoming back . I know that its expensive but i would suggest upgrading your lighting asap. Otherwise you will lose all of that expensive live rock that you just bought.
 

barry cuda

Member
I think that last post could do with some clarification. The live rock itself doesn't require any special lighting at all. The bacterial populations that perform biofiltration, which are the primary reason for having live rock, will do just fine under 30 watts or even in an unlit tank. However, you *will* find that more of the hitchhiking critters that are probably on that rock will survive if you have better lighting. I don't know, myself, if the coralline algae that gives the rock its color requires any particular level of lighting. I believe the coralline in my tank has started getting its color back now that I've got the lights onto a full-length photoperiod, but that's a pretty subjective observation.
 

lilredcmc

Member
eventually we had planned on changing the lighting so doing a little sooner is not really that big of a problem, i was just curious as to why certain parts of the rock were white. thanks guys for all the info :happyfish
 
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