Couple of issues with my tank at present, tho neither impacting on fish or corals.
Had diatoms covering sand for a while, only take 24hrs to come back after siphoning off. I'm also aware as the topic indicates of pearling on my rock, tho no real sign of significant algal growth, although it's obviously there for the photosynthesis to be taking place. I'm gradually backing off my light intensity, more so blues, to try and help, currently at 30%. Here are tests just done:
Relevant parameters are PO4 0.25 NO3 5.
Now, I was surprised by the phosphate as I run Rowaphos in a reactor and was getting an undetectable reading.
So, obviously need to replace that, but is phosphate alone enough to cause this pearling and diatom problem. I've also changed things recently, tho post diatom problem. I pulled out 3 sponges from my first 2 sump chambers and replaced them with Alfa grog. Could this have caused a phosphate spike?? Thanks.
Had diatoms covering sand for a while, only take 24hrs to come back after siphoning off. I'm also aware as the topic indicates of pearling on my rock, tho no real sign of significant algal growth, although it's obviously there for the photosynthesis to be taking place. I'm gradually backing off my light intensity, more so blues, to try and help, currently at 30%. Here are tests just done:
Relevant parameters are PO4 0.25 NO3 5.
Now, I was surprised by the phosphate as I run Rowaphos in a reactor and was getting an undetectable reading.
So, obviously need to replace that, but is phosphate alone enough to cause this pearling and diatom problem. I've also changed things recently, tho post diatom problem. I pulled out 3 sponges from my first 2 sump chambers and replaced them with Alfa grog. Could this have caused a phosphate spike?? Thanks.
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