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-   -   fishless cycle update (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/fishless-cycle-update-114333/)

twinkey 09-15-2012 01:22 AM

fishless cycle update
 
got an update..here are my before and after tests..before wc....can it be im gonna finally finish soon..surely hope so
2 hours after wc..will check in the morning again.
BEFORE
ph..............6.0
high ph.......?(color was off the chart...like a deep yellow)
ammonia......0.25ppm
nitrites.......5.0ppm
nitrates......80ppm

AFTER
ph..............7.2
high ph.......7.4
ammonia....2.0ppm(redosed to)
nitrites.......0.25ppm
nitrates......20ppm

GwenInNM 09-15-2012 08:52 AM

Quote:

Originally Posted by twinkey (Post 1243633)
got an update..here are my before and after tests..before wc....can it be im gonna finally finish soon..surely hope so
2 hours after wc..will check in the morning again.
BEFORE
ph..............6.0
high ph.......?(color was off the chart...like a deep yellow)
ammonia......0.25ppm
nitrites.......5.0ppm
nitrates......80ppm

AFTER
ph..............7.2
high ph.......7.4
ammonia....2.0ppm(redosed to)
nitrites.......0.25ppm
nitrates......20ppm

It's good you're seeing nitrates, so you are close, but you should not get readings of nitrites or ammonia before you put fish it. I'd wait a bit longer after a water change to see how your numbers hold up without fish.

Gwen

FlyingFish47 09-15-2012 08:58 AM

Is it bad if the pH doesn't change after a PWC? My pH has always been hovering around the same no matter what (desalinated tap water with conditioner in it) I noticed the CI finally went to 0 when I used Prime instead of another brand. I guess it just wasn't getting rid of enough

(My pH is always been 6.4 and 6.8 regardless of what I do)

AbbeysDad 09-15-2012 09:54 AM

I agree with Gwen....once your nitrosomonas and nitrobacter colonies are up to speed, you will rarely, if ever, measure any ammonia or nitrite. However, since you are measuring high(er) nitrates, it looks like your getting close (although I think it would typically take a very large water change to drop nitrates from 80ppm to 20ppm).

Due to buffering, pH tends to be very stable. Often folks that attempt to alter pH find it to be almost a loosing battle as pH tends to return to previous values. As I learned in my (truckloads) of composting days, pH often goes acidic during periods of organic matter decomposition, but returns towards neutral when complete.
What is the pH of your source (tap?) water?

twinkey 09-15-2012 10:04 AM

Quote:

Originally Posted by AbbeysDad (Post 1243829)
I agree with Gwen....once your nitrosomonas and nitrobacter colonies are up to speed, you will rarely, if ever, measure any ammonia or nitrite. However, since you are measuring high(er) nitrates, it looks like your getting close (although I think it would typically take a very large water change to drop nitrates from 80ppm to 20ppm).

Due to buffering, pH tends to be very stable. Often folks that attempt to alter pH find it to be almost a loosing battle as pH tends to return to previous values. As I learned in my (truckloads) of composting days, pH often goes acidic during periods of organic matter decomposition, but returns towards neutral when complete.
What is the pH of your source (tap?) water?

tap ph is 7.6...24hrs with a bubble stone....actually ilet it go for 2 days before i checked it

FlyingFish47 09-15-2012 10:24 AM

@AbbeysDad... makes sense. I was using the fish meat/food cycling. So the rotting meat would have done that. The pH is pretty much the same, maybe slightly higher out of the tap.

AbbeysDad 09-15-2012 12:57 PM

I would expect your tank pH to be closer to your tap pH. Perhaps your water is soft and not providing much buffer? I'll defer to others here with more knowledge about managing pH.

However, a neutral (7.0) pH is considered very good for a community tank, so 6.8 isn't bad and would be perfect for most fish acclimated to it.

Most fish adapt very well to a very wide range in pH. HOWEVER, rapid changes in pH can spell disaster (Although not fish, I'm reminded of a disaster when I added some ground limestone to a worm bin).
The point is you are much better off living with your pH rather than adding things to try and change it. (Just my $,02)

shireelf 09-15-2012 01:26 PM

Quote:

Originally Posted by AbbeysDad (Post 1244028)
I would expect your tank pH to be closer to your tap pH. Perhaps your water is soft and not providing much buffer? I'll defer to others here with more knowledge about managing pH.

However, a neutral (7.0) pH is considered very good for a community tank, so 6.8 isn't bad and would be perfect for most fish acclimated to it.

Most fish adapt very well to a very wide range in pH. HOWEVER, rapid changes in pH can spell disaster (Although not fish, I'm reminded of a disaster when I added some ground limestone to a worm bin).
The point is you are much better off living with your pH rather than adding things to try and change it. (Just my $,02)

That makes sense to me. I think I'm going to abandon my attempt to lower the pH of my tank. We have very alkaline water the pH is about 7.5. I've been adding something I got from API to lower my pH but I've kept adding and adding the stuff and nothing happens to the pH(adding in a bucket not the tank directly). I'm afraid to add to much because I know that fish can be harmed if there is a drastic pH change.


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