• Looking to buy a cephalopod? Check out Tomh's Cephs Forum, and this post in particular shares important info about our policies as it relates to responsible ceph-keeping.

Getting rid of nitrates

Joined
May 31, 2006
Messages
54
What is a good way to get rid of nitrates in a closed, circulating system? I have been doing daily 10 gal water changes on my system which has 2 40-50 gal tanks and a sump that consists of a large black bucket of unknown capacity. It has been sufficient for a while, but of late my octos have shown a decline in appetite. How might I reduce the nitrate level in the system?
 

binaryterror

GPO
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Joined
Dec 19, 2005
Messages
111
Yeah, macro algea does do wonders! A skimmer actually does help to take out the really nasty stuff to keep the trates lower for longer.
 
Joined
May 31, 2006
Messages
54
I do live near the ocean. How would I identify such algae? And how much does it cost if I were to buy it? And are there any special things I need to have to keep the algae alive? How much should I get?
 
Joined
Jan 3, 2006
Messages
69
well i have a species of calerpa in mine and it looks like a bunch of bubbles on a single shaft. it grows pretty quick. i don't have anything special. just a powerhead to keep off detritus and such.
 

DHyslop

Architeuthis
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Dec 22, 2004
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1,713
I'd stay away from caulerpa, it can pollute your tank. Macros will grow fine under normal-output fluorescents, but they do grow faster with more light.

Dan
 

DHyslop

Architeuthis
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Dec 22, 2004
Messages
1,713
When caulerpa decides to reproduce sexually, it releases thousands of spores into the water and most of it dies. If you wake up to a cloudy tank, this is probably the culprit.

There are also environmental concerns. I think C. racemosa is OK, but C. taxifolia is invasive and is currently conquering the Mediterranean. I believe California and Florida already have laws against owning it.

Dan
 
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