Switched from CC to DSB/Algea problem

cgr

cgr

Member
I switched from CC to DSB about a month ago. I also replaced my lights with two 90W Smart lights compacts. Since I made the changes, I have been plagued with algea blooms and brown algea on top of the sand. I used 4" silica sand and topped it with 1" live sand from my lfs. My readings were fine but recently I noticed a drop in PH which I stabilized. Any comments or suggestions? All the livestock seems to be doing fine except for snails.
120 Gal FOWLR
1 Yellow tang
1 Blue tang
1 Sailfin tang
3 chromis
1 cleaner wrass
1 tomato clown
1 sleeper gobie
1 skunk cleaner shrimp
1 coral banded shrimp
2 peppermint shrimp
1 sandsifter star
emerald crabs,snails, blue and scarlet legged hermits
Ammonia 0, Nitrites 0, Nitrates 0, PH 8.2, Salinity 1.024
 
kreach

kreach

Active Member
Try cutting back the number of hours that your lights are on.
In the ocean, there is 12 hours of daylight, but it is at varying degrees of intensity. In a tank, the light intensity stays the same (high) all the time, so there's no need to run the lights that long. I would suggest cutting the time your lights are on down to 8 hours.
 
dreeves

dreeves

Active Member
Your ph will most likely continue to fluctuate due to lack of buffering from the silica sand versus the aragonite sand. I think you should pay close attention to that.
 
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