Phosphate/Nitrate

[Kanshi]

I just had to do a tank swap yesterday due to bad seam on my old tank. All new sand, and 100% new water. It went well. Fish all look great but I brought water to lfs to test. Nitrates are 52 why would this be after 100% water change. Phosphates are very high also.

 

[JTP424]

Could be dead stuff in the "new sand" if you're using bagged "with live bacteria" etc.

 

[Kanshi]

Could be dead stuff in the "new sand" if you're using bagged "with live bacteria" etc.

 

[Kanshi]

Rinsed it to clear. About 5 hrs of rinse time.

 

[Dan_P]

I just had to do a tank swap yesterday due to bad seam on my old tank. All new sand, and 100% new water. It went well. Fish all look great but I brought water to lfs to test. Nitrates are 52 why would this be after 100% water change. Phosphates are very high also.

Is there a chance the LFS mixed up the water samples?

I suppose there was live rock that was moved. Anything on it die?

 

[JTP424]

Probably need more information to diagnose.
- Where is the fresh SW coming from
- ^ anything besides fish that was moved (liverock like mentioned above)
- State of the new tank, did it come straight from store, old tank that got cleaned etc.
- Are you using a sump and what is its state etc.

 

[Kanshi]

No I was standing with them when they tested.
Doesn't seem like anything on the rock died. But I suppose that could be something. Rocks came out of old tank straight into buckets of water, sat for about an hour then right in to the new.

 

[Kanshi]

Probably need more information to diagnose.
- Where is the fresh SW coming from
- ^ anything besides fish that was moved (liverock like mentioned above)
- State of the new tank, did it come straight from store, old tank that got cleaned etc.
- Are you using a sump and what is its state etc.

New salt water came from my lfs. They did the tank swap for me.
Brand new tank, brand new sump.

 

[EeyoreIsMySpiritAnimal]

A couple ideas:

1. You say rinsed the sand in tap water... There could be nitrate/phosphate from that trapped in the sand.
2. The rocks could have a lot of muck embedded that is releasing nutrients into your new water.

 

[Kanshi]

A couple ideas:

1. You say rinsed the sand in tap water... There could be nitrate/phosphate from that trapped in the sand.
2. The rocks could have a lot of muck embedded that is releasing nutrients into your new water.

Rinsed in tap them last two rinsed were ro/di.
The muck in the rock makes sense I suppose.