bubbles in sand bed ?

ajcjr420 · 01/09/2009, 07:18 PM

I have noticed air bubbles in and on top of my sand bed, particularly in one spot. I recently added a few sps coral to my tank and the bubbles are in the same area around the two corals. In this same area the sand on top is a purplish pink. My dkh is 12 my ph is 8.3, calcium is at 380 and salinity is 1.024. Can anyone explain this? Tank is roughly 3 mos old and Iâ€™m just as new to the hobby.

WaterKeeper · 01/09/2009, 07:24 PM

Sand bubbles can usually be three gasses. Nitrogen if you have a DSB and the bed is removing nitrate. Carbon dioxide, usually at night, produced by algae and oxygen, usually in the day, produced by algae or denitrification. A bubbly bed is an active bed and is, as Martha Stewart would say, a good thing.

savethereef · 01/09/2009, 07:28 PM

Denitrification

WaterKeeper · 01/09/2009, 07:46 PM

Very possibly--see item one above.

01/09/2009, 07:18 PM	#1
ajcjr420 Registered Member Join Date: Apr 2008 Posts: 14	bubbles in sand bed ? I have noticed air bubbles in and on top of my sand bed, particularly in one spot. I recently added a few sps coral to my tank and the bubbles are in the same area around the two corals. In this same area the sand on top is a purplish pink. My dkh is 12 my ph is 8.3, calcium is at 380 and salinity is 1.024. Can anyone explain this? Tank is roughly 3 mos old and Iâ€™m just as new to the hobby.

01/09/2009, 07:24 PM	#2
WaterKeeper Bogus Information Expert Join Date: Oct 2000 Location: SW Ohio Posts: 16,147	Sand bubbles can usually be three gasses. Nitrogen if you have a DSB and the bed is removing nitrate. Carbon dioxide, usually at night, produced by algae and oxygen, usually in the day, produced by algae or denitrification. A bubbly bed is an active bed and is, as Martha Stewart would say, a good thing. __________________ "Leading the information hungry reefer down the road to starvation" Tom Current Tank Info: 130 Now out of service and a 29

01/09/2009, 07:28 PM	#3
savethereef SCRK Join Date: Oct 2006 Location: Bellflower 90706 CA (So Cal) Posts: 7,720	Denitrification __________________ Instead of building a reef in my home i would rather build my home in the reef. Rob aka STR SCRK & SCMAS MEMBER Current Tank Info: Leemar 450g 96L x36W x 30T 3/4 inch Starfire With 70g Sump Vertex 250 Royal Exclusive protein Skimmer Laguna 2900 Return pump 5 Aquaillumination Hydra's LED Modules. 4 Tunze Stream Bubble Magus Doser. Reef Keeper Elite

01/09/2009, 07:46 PM	#4
WaterKeeper Bogus Information Expert Join Date: Oct 2000 Location: SW Ohio Posts: 16,147	Very possibly--see item one above. __________________ "Leading the information hungry reefer down the road to starvation" Tom Current Tank Info: 130 Now out of service and a 29