Why am I getting ammonia in my perfectly fine RODI water?

[AquaticGenius]

Okay so I have been cycling my tank. I am doing various mini cycles until I’m able to get from 2ppm to 0 in 24 hours. This was going good and I was almost finished until I decided to do a water change and noticed my ammonia spiking to .4 ppm after that . I tested my water and I’m reading .4 ammonia. I decided to then purchase a new DI Resin believing maybe I have wasted through it. I replaced the filter and yet I’m still getting the same readings? Help!!!!!!!!! P.S I’m getting 0 TDS

 

[Jeffcb]

salt water test

 

[AquaticGenius]

salt water test

Yes I have tested with the salinity at exactly 1.026

 

[Flux Capacitor]

Chloramines in your water? What’s your source water?

 

[JGT]

Okay so I have been cycling my tank. I am doing various mini cycles until I’m able to get from 2ppm to 0 in 24 hours. This was going good and I was almost finished until I decided to do a water change and noticed my ammonia spiking to .4 ppm after that . I tested my water and I’m reading .4 ammonia. I decided to then purchase a new DI Resin believing maybe I have wasted through it. I replaced the filter and yet I’m still getting the same readings? Help!!!!!!!!! P.S I’m getting 0 TDS

Maybe your test has gone bad. Did you try another one?

 

[vetteguy53081]

Test after 24 hrs as when you change water, you ate stirring up silicates and detritus , which will show slight ammonia

 

[Daddy-o]

Doesnt a proper chloramine filter convert chloramine to ammonia? or sumthin?

 

[Thespammailaccount]

Okay so I have been cycling my tank. I am doing various mini cycles until I’m able to get from 2ppm to 0 in 24 hours. This was going good and I was almost finished until I decided to do a water change and noticed my ammonia spiking to .4 ppm after that . I tested my water and I’m reading .4 ammonia. I decided to then purchase a new DI Resin believing maybe I have wasted through it. I replaced the filter and yet I’m still getting the same readings? Help!!!!!!!!! P.S I’m getting 0 TDS

If you are testing RODI and you get a ammonia reading it is chloramines which breaks down into ammonia

 

[AquaticGenius]

If you are testing RODI and you get a ammonia reading it is chloramines which breaks down into ammonia

So what would you recommend me to do in this case? I am getting my source from tap water, which I filter through an RODI system

 

[AquaticGenius]

Test after 24 hrs as when you change water, you ate stirring up silicates and detritus , which will show slight ammonia

Yes I do that and the test come back At 0, but I am worried about the ammonia levels in my RODI system. There are time though where my ammonia spikes even after a day which is odd.

 

[AquaticGenius]

Maybe your test has gone bad. Did you try another one?

I am using the Red Sea Ammonia test kit and I’ve tested with the salifert as well. I find salifert to be hard to read

 

[AquaticGenius]

Chloramines in your water? What’s your source water?

I believe so. I am using tap water that I filter through an Aquaticlife 75 GDP RODI System

 

[Daddy-o]

Does your area water provider use chloramine? Is your carbon block rated for chloramine?

 

[Thespammailaccount]

So what would you recommend me to do in this case? I am getting my source from tap water, which I filter through an RODI system

Chloramines will make you go through filters like a roll of toilet paper. I have a 8 stage RODI with triple di and chloramine buster pre RODI. I now use distilled. What is your total system volume?

 

[AquaticGenius]

Chloramines will make you go through filters like a roll of toilet paper. I have a 8 stage RODI with triple di and chloramine buster pre RODI. I now use distilled. What is your total system volume?

I have an IM 20 nuvo. It has 20 gallon tank capacity but holds about 16 gallons of actual water volume . I find this RODI to be very quick in producing water, however recently I have had this ammonia issue which is quite the frustration!

 

[Thespammailaccount]

Yes I do that and the test come back At 0, but I am worried about the ammonia levels in my RODI system. There are time though where my ammonia spikes even after a day which is odd.

If you test your display tank 24 hours after a water change and ammonia is zero the bacteria in the tank has processed the ammonia and in the process increased your nitrates as well.

 

[Flux Capacitor]

I believe so. I am using tap water that I filter through an Aquaticlife 75 GDP RODI System

I’d get some of the chloramine rated carbon blocks, run some new water see what the ammonia shows.