My new hatchery (56k beware)

I'm pretty late to this thread, but I do want to post one correction. In marine environments nitrate is actually more toxic than nitrite. The chloride salts in the effectively out compete the nitrite and prevent it from bonding to hemoglobin. This is why adding salt to the water is a standard treatment for nitrite toxicity in freshwater systems.

I'm rather impressed with you set up. Since coil denitrators don't seme reliable have you considered a sulfur denitrator? I agree nothing compares to regular water changes but I think you might save some $$ in the long run with such a system.
 
I wouldnt say nitrate is more toxic than nitrite even though it seems to be much less toxic than in FW and both are much less toxic than ammonia.

there is nothing especially unreliable with a well built coil denitrator, aside from it being a bio filter to begin with, (something we already have to rely on very significantly) the sulfur ones are no better or worse in this regard, just smaller, and more $$ in both initial cost and running costs
 
I've never seen any scientific evidence that nitrate was, at all, toxic, and I have read a whole lot about water chemistry. Of course, no one wants it because with nitrate comes algae problems. Also, I think I read something about it possibly making the zooxanthellae in the corals multiply to disproportionate levels? Anyone?
 
<a href=showthread.php?s=&postid=7082202#post7082202 target=_blank>Originally posted</a> by brandonberry
Siklid, Care to share your source for that info?

I can give it to you from personal experience.

Having ammonia at >1.0ppm will wipe out your tank, everything. And having >100ppm nitrate will not bother your fish at all, but will cause problems with inverts.

Similarly nitrite at >1.0ppm will wipe out your livestock, while I have seen FO systems that are running great for years with >150ppm nitrate.

Nitrate in SW is not highly toxic, ammonia and nitrite is.
 
<a href=showthread.php?s=&postid=7082312#post7082312 target=_blank>Originally posted</a> by JHardman
I can give it to you from personal experience.

Having ammonia at >1.0ppm will wipe out your tank, everything. And having >100ppm nitrate will not bother your fish at all, but will cause problems with inverts.

Similarly nitrite at >1.0ppm will wipe out your livestock, while I have seen FO systems that are running great for years with >150ppm nitrate.

Nitrate in SW is not highly toxic, ammonia and nitrite is.

yep yep, and if you disagree with these numbers try doing a search in the forums thats plenty of info on this site about it
 
Just the same, a nitrate removal system would be great for a system this size. I am a firm believer in water changes, but it will get expensive on this scale. Think about it ; 500 gallons approximately for just the breeding system alone. If he does a 20% change once a week, that's 100 gallons, at 20 cents a gallon for water and salt, that's 20$/week, 80$+ a month, 1040$ a year. He's got three systems!
 
i have a question, why i breeding still using wet dry bio balls etc.. when my SPS system only uses a huge skimmer and keeps everything po4, nh4 etc... down to 0?
 
i have a question, why i breeding still using wet dry bio balls etc.. when my SPS system only uses a huge skimmer and keeps everything po4, nh4 etc... down to 0?

A typical breding system probably has 10-50 times more bio-load and waste than a typical reef system, maybe more? If you want adults to breed or juvies to grow you have to FEED them, and you have to feed them a LOT. :D The sps guys I know feed their fish 2-3 times per week.
 
<a href=showthread.php?s=&postid=7097611#post7097611 target=_blank>Originally posted</a> by David M
A typical breding system probably has 10-50 times more bio-load and waste than a typical reef system, maybe more? If you want adults to breed or juvies to grow you have to FEED them, and you have to feed them a LOT. :D The sps guys I know feed their fish 2-3 times per week.

uhm i feed 3x a day and all my bb friends have over 20 fishes in their tank, but skimmer is so powerful that it rips the water till the coral bleach. we had to bring our faded colors back with alot of fishes. in my 40 i have 9 fishes and feed 3x a day. i dont know does bioball + denitrafier do alot more?
 
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