Had a Lab check my tank and tap water

JiveWalker · 09/23/2013, 10:51 AM

I have access to a water quality lab, so I brought some tank water and tap water in today and had it tested. My tank just finished cycling and I wanted a second opinion before I start adding anything. Here are the results:

Tank Water:
Salinity 36, (my hydrometer was showing 1.024)
Ph 8.06
NH3 0
NO2 0.002
Alk 136

My Tap Water:
Salinity 0
pH 7.54
NH3 0.25
NO2 .012
Alk 19
total Chlorine 0.52
Cu 0.010

It was inbteresting to see, and I'm surprised that the tap water wasn't much worse. The reason I had it tested was that I used tap water to fill/fishless cycle the tank. Wanted to see if I good use it as top off. Will be using filtered water for W/C's.

disc1 · 09/23/2013, 11:29 AM

Would you mind putting some units with those numbers.

Is the alkalinity in the tap water 19ppm or 19dkH. If the latter then that is a big problem.

I'd also be wary of that copper number, assuming it is in ppm. Again, numbers are useless without units.

AFK1911 · 09/23/2013, 11:56 AM

how about phosphate?

gone fishin · 09/23/2013, 12:01 PM

Quote:

Originally Posted by disc1

Would you mind putting some units with those numbers.

Is the alkalinity in the tap water 19ppm or 19dkH. If the latter then that is a big problem.

I'd also be wary of that copper number, assuming it is in ppm. Again, numbers are useless without units.

you know the numbers are free but the units will cost. Something a college professor told me a long time ago.

JiveWalker · 09/23/2013, 01:43 PM

Sorry for not including the units,

Mg/l for NH3, NO2 and Alk.

I'll find out what units the Total Chlorine and Copper mesurements were in tomorrow.

I didn't ask for phosphate or TDS, maybe I'll do that tomorrow.

E Rosewater · 09/23/2013, 02:18 PM

I would also assume that the salinity is in ppm

09/23/2013, 10:51 AM	#1
JiveWalker Registered Member Join Date: Dec 2011 Location: Chucktown Posts: 184	Had a Lab check my tank and tap water I have access to a water quality lab, so I brought some tank water and tap water in today and had it tested. My tank just finished cycling and I wanted a second opinion before I start adding anything. Here are the results: Tank Water: Salinity 36, (my hydrometer was showing 1.024) Ph 8.06 NH3 0 NO2 0.002 Alk 136 My Tap Water: Salinity 0 pH 7.54 NH3 0.25 NO2 .012 Alk 19 total Chlorine 0.52 Cu 0.010 It was inbteresting to see, and I'm surprised that the tap water wasn't much worse. The reason I had it tested was that I used tap water to fill/fishless cycle the tank. Wanted to see if I good use it as top off. Will be using filtered water for W/C's. __________________ 90 AGA \| 20+ G Sump \| Berlin 25-250 \| Photon 48 \| Rio 2500+ \| UltraClear 250WD \| WP25

09/23/2013, 11:29 AM	#2
disc1 -RT * ln(k) Join Date: Sep 2010 Location: Little Rock Posts: 9,705	Would you mind putting some units with those numbers. Is the alkalinity in the tap water 19ppm or 19dkH. If the latter then that is a big problem. I'd also be wary of that copper number, assuming it is in ppm. Again, numbers are useless without units. __________________ David Current Tank: Undergoing reconstruction...

09/23/2013, 01:43 PM	#5
JiveWalker Registered Member Join Date: Dec 2011 Location: Chucktown Posts: 184	Sorry for not including the units, Mg/l for NH3, NO2 and Alk. I'll find out what units the Total Chlorine and Copper mesurements were in tomorrow. I didn't ask for phosphate or TDS, maybe I'll do that tomorrow. __________________ 90 AGA \| 20+ G Sump \| Berlin 25-250 \| Photon 48 \| Rio 2500+ \| UltraClear 250WD \| WP25

09/23/2013, 11:56 AM	#3
AFK1911 Registered Member Join Date: Sep 2013 Posts: 50	how about phosphate?

09/23/2013, 02:18 PM	#6
E Rosewater Registered Member Join Date: Dec 2012 Posts: 846	I would also assume that the salinity is in ppm