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High nitrate and nirite


Megan dean

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We have a 135 gallon tank with fishes, crabs, nails, starfishes and can't get the nitrate and nitrite levels won't go down down no matter how much water changes we do or medication we use any suggestions  and Emerald crabs and fishes are dying

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Nitrite has no bearing in any display saltwater tank, it’s neutral, cease testing for it

 

Nitrate has a slew of correction options, take any of the common ones you see in searches 

 

 

two helpful reads from same guy

 

read one, the neutrality of nitrite don’t measure it 

http://reefkeeping.com/issues/2005-06/rhf/index.php

 

read two, water changes don’t help lower nitrate  

https://reefs.com/magazine/aquarium-chemistry-nitrate-in-the-reef-aquarium/

 

 

there is no display reef in history that runs zero ammonia zero nitrite. All reefs run very small amounts. Common water additives like Prime cause false nitrite reads 

 

 

it’s easy for kits to overstate the read level 

 

but ignoring it in the first place is best, it’s a totally neutral param at all times we can see above, in a display reef. This includes during the original cycle.

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Fish death = needs fallow and quarantine, we expect mixed pet store fish to die without it in those large setups. Dying crabs, unrelated / tbd.

 

 

if you want to stop fish loss, identify the disease killing them. Post a full tank picture, it’ll show a normal reef otherwise. An additive or doser isn’t how you react, it’s with disease identification and if that’s not possible, you’d redo the fallow and quarantine needed in all reef starts to exclude common diseases.

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