What is the difference - Page 3

cheeks69 · 12-23-2007, 02:59 AM

I have a hard time seeing how nitrate levels of 5-10 ppm would cause bleaching of the tips on the SPS corals. I've had nitrates in the 20's with SPS corals and although they weren't very colorful they did grow and were healthy.

Koda your link doesn't work but denitrators can be difficult to use and can had an impact on your ph and bacterial levels can fluctuate dramatically ! What are you using to maintain your ph since your using a calcium reactor and denitrator ?

prow · 12-23-2007, 12:39 PM

i go with the softies as the root cause. well not really the root. most bleaching is caused by bacteria. if your softies slimed up or anything and the slime ended up on the acro, or the acro just got irritated by it, the acro would secret its slim. bacteria feed on it and cause the bleaching(more to it but its chemical stuff, to much to post). the acro could have grown fine with flow keeping the irritating slime away. as they grow and alter the flow patterns maybe now the slime gets trapped. the slime could also be the cause of the elevated nitrates.

Koda2007 · 12-25-2007, 08:33 AM

Cheeks69 Thanks for the reply. The aqua medic nitrate reductor uses bacto balls in a large container. The flow into the unit is controld via a dosing pump. You need to get low flow to bacto ball as by the time the flow gets to the bottom of the unit it is virtually oxygen free. You need to feed this unit every day with Deminar powder. As far as am aware it is meant to have no impact on Ph as Sulphur denitrators do. I do agree that it may have an affect on bacteria levels.
I do not usually have a problem with Ph as I do weekly 10% water changes and sometimes 15%. If I do have probs I normally use salifert ph buffer or Ph + dkh buffer.

Thanks everyone for the advice over the last few months and hope you all have a wonderful christmas.

12-23-2007, 02:59 AM	#31 (permalink)
cheeks69 Wannabe Guru Join Date: Nov 2003 Location: Northeast Posts: 7,142 View Gallery Karma Komment	Re: What is the difference I have a hard time seeing how nitrate levels of 5-10 ppm would cause bleaching of the tips on the SPS corals. I've had nitrates in the 20's with SPS corals and although they weren't very colorful they did grow and were healthy. Koda your link doesn't work but denitrators can be difficult to use and can had an impact on your ph and bacterial levels can fluctuate dramatically ! What are you using to maintain your ph since your using a calcium reactor and denitrator ? __________________ Robert My Cube “A spirit is manifest in the laws of the Universe—a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.” Albert Einstein

12-23-2007, 12:39 PM	#32 (permalink)
prow Tridacna maxima Join Date: May 2005 Location: Redondo Beach, CA Posts: 4,453 View Gallery Karma Komment Add yours!	Re: What is the difference i go with the softies as the root cause. well not really the root. most bleaching is caused by bacteria. if your softies slimed up or anything and the slime ended up on the acro, or the acro just got irritated by it, the acro would secret its slim. bacteria feed on it and cause the bleaching(more to it but its chemical stuff, to much to post). the acro could have grown fine with flow keeping the irritating slime away. as they grow and alter the flow patterns maybe now the slime gets trapped. the slime could also be the cause of the elevated nitrates. __________________ "He who sees things grow from their beginnings shall have the finest view of them" ........Aristotle........ "The only difference between me and a madman is that I'm not mad." - Salvador Dali my chronicle........ http://www.reefsanctuary.com/forums/...al-system.html my clamicle..........http://www.reefsanctuary.com/forums/...my-tank-d.html

12-25-2007, 08:33 AM	#33 (permalink)
Koda2007 Fire Coral Join Date: Oct 2007 Location: England Posts: 63 View Gallery Karma Komment	Re: What is the difference Cheeks69 Thanks for the reply. The aqua medic nitrate reductor uses bacto balls in a large container. The flow into the unit is controld via a dosing pump. You need to get low flow to bacto ball as by the time the flow gets to the bottom of the unit it is virtually oxygen free. You need to feed this unit every day with Deminar powder. As far as am aware it is meant to have no impact on Ph as Sulphur denitrators do. I do agree that it may have an affect on bacteria levels. I do not usually have a problem with Ph as I do weekly 10% water changes and sometimes 15%. If I do have probs I normally use salifert ph buffer or Ph + dkh buffer. Thanks everyone for the advice over the last few months and hope you all have a wonderful christmas.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)