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Can't Get The Nitrites Down


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  • Regular Member

Ugh..

I have posted on the 911 section because a fish is involved.

but the situation is I didn't change water in a tank my girl fish got sick. Sinker on the side. I put her in a hospital tank I had just started cycling. I put in 50% new water & 50% water from her tank.

Kept checking - nitrites not doing good.

I tested a few more tanks I had been setting up and found one with better water parmas. Moved her. I moved a male in because i thought she might be egg impacted.

He is doing fine.

She is the same - eating Medi-gold.

The parmas are at ammonia = 0 and nitrites .5

I cannot get the nitrites to move to zero.

Help.....

she is in a 10 gallon tank, sponge filter, hang-on (2 days old), and air stone.

I do 20- 40% water changes.

What can I do?

Heather

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  • Regular Member

If you are using an uncycled QT you will have to do 100% water changes daily esp in a small 10 gallon.

I'm sorry it is hard work and expensive re-dosing if you are using meds but it is the only way. And meds will be ineffective and dangerous with nitrites :(

Nitrites are only reduced via huge water changes.

With 100% fresh treated temp matched water every day your fish will soon be out of QT :)

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  • Regular Member

QT ing or medicating a fish is usually just for 1,2,3 weeks so there is little point trying to cultivate good bacteria in a QT.

Also many meds kill good bacteria.

Beneficial bacteria takes at least 5 to 6 weeks to kick in properly although some will be growing already after about 3-4 weeks.

What have you been advised to medicate with and for how long?

And you asked about conditioning- yes don't forget to add water conditioner to any new water. Prime is great

for that.

Edited by Trinket
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  • Regular Member

I have not been medicating the water. I have only been feeding medi-gold food.

I have been treating the water with Aqua Novi - conditioner to get the clorine out.

I have Prime. Should I use it? and how? Do I do water changes after that?

Heather

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  • Regular Member

High Nitrites indicate that your tank was not cycled properly.

Although fish can tolerate up to 1.6mg/l of Nitrites, continuous exposure to Nitrites can cause internal diseases.

So, yes, keep doing regular water changes.

Make sure you use aged water to re-fill your tank & add a water primer to remove chlorine.

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