Small, daily water changes - Page 4 - Tropical Fish Keeping - Aquarium fish care and resources
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post #31 of 39 Old 01-03-2013, 09:12 AM Thread Starter
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Small update: I bought some JBL NitratEx as recommended by my LFD.

JBL NitratEX - Aquatis Fresh water - JBL

Some of the products mentioned are either not available in this country or only available online and I wanted to get something in today.
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post #32 of 39 Old 01-03-2013, 09:20 AM
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It would be interesting to have tested prior to using it then test again afterwards and see the effectiveness. I assume that you you could just plop that into the filter after your water change, suck them up, then remove it for later use again.

... reactivation with common salt....

I don't know how this works but is there any chance that it uses salt to displace the Nitrates somehow leaving you with a sodium problem in place of a Nitrate problem?

Jeff.


Total years fish keeping experience: 7 months, can't start counting in years for a while yet.

The shotgun approach to a planted tank with an LED fixture

Small scale nitrogen cycle with a jar, water and fish food; no substrate, filter etc
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post #33 of 39 Old 01-03-2013, 09:30 AM
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Quote:
Originally Posted by AbbeysDad View Post
Quote:
Originally Posted by beaslbob
An initial nitrate value is part of a planted tank cycle as the plants are consuming ammonia for nitrogen.

Just let things be and nitrates will drop down once the aerobic bacteria build up and consume the ammonia.
My .02
This statement is incorrect. aerobic nitrosomonas bacteria oxidizes ammonia into nitrites and aerobic nitrosprira bacteria oxidize nitrites into nitrates....as a result, nitrates increase. There are species of anaerobic bacteria that will oxidize nitrates into nitrogen gas. However, these bacteria can only survive in an environment with little/no oxygen which is extremely difficult to create in a fish aquarium.

...

Well I do tend to (over)simplify things at times.

and your statment is correct.

But when you setup a planted tank there can be existing nitrate sources like from organic substrates, input water and so on. Not just the nitrates generated from the aerobic bacterial action.

In that case the plants will bypass the nitrates and consume the ammonia instead. So nitrates can initially build up.

I hope new hobbiest are not overly concerned by that as in a planted tank that actually is a good sign. Much better to have nitrates then ammonia in either a new tank or a mature tank that suffered some shock and is recovering.


And I have noticed very high nitrate levels in a marine system for months. Like red on the api test kit. Then in 3 weeks they dropped to 0. The tank was balanced out by macro algae which probably was not only consuming ammonia but also growing and expanding while bacteria consuming builds up (consuming ammonia) and finally dropping nitrates down.

Here are parameters I measured on a new 20g leiden I set up. It show the initial nitrate spike I mentioned.


Still just my .02
Attached Images
File Type: jpg 20gleiden.jpg (24.1 KB, 34 views)

maintain Fw and marine system with a strong emphasis on balanced, stabilized system that as much as possible are self substaning.

have maintained FW systems for up to 9 years with descendants from original fish and marine aquariums for up to 8 years.

With no water changes, untreated tap water, inexpensive lighting by first starting the tank with live plants (FW) or macro algae( marine)

see: http://www.tropicalfishkeeping.com/a...-build-295530/

Last edited by beaslbob; 01-03-2013 at 09:32 AM.
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post #34 of 39 Old 01-03-2013, 10:02 AM Thread Starter
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It would be interesting to have tested prior to using it then test again afterwards and see the effectiveness. I assume that you you could just plop that into the filter after your water change, suck them up, then remove it for later use again.

... reactivation with common salt....

I don't know how this works but is there any chance that it uses salt to displace the Nitrates somehow leaving you with a sodium problem in place of a Nitrate problem?

Jeff.
I did. I took a sample and thought it was about 40ppm. I can't really tell the difference between the 40ppm and the 80ppm on the API liquid test chart so I took it into my LFD and he did a dilution and said it was about 40ppm. I'll test it again in a few days. You soak it in iodine-free salt for a couple of days to reactivate it, then rinse it loads so you rinse all the salt out. I also found out my LFD sells RO water at 10p litre. He said you shouldn't use it all of the time through as it strips water of some essential stuff.

Interestingly, the leaflet that came with the NitratEx recommends that the nitrate content should not drop below 10mg/1 to avoid the risk of toxic hydrogen sulphide forming
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post #35 of 39 Old 01-03-2013, 10:13 AM
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Originally Posted by CelsB View Post
Interestingly, the leaflet that came with the NitratEx recommends that the nitrate content should not drop below 10mg/1 to avoid the risk of toxic hydrogen sulphide forming
Right. H2S is a product of an anaerobic process which is not generally something that can happen unless you have some deep substrate. I'd take my chances.

Jeff.


Total years fish keeping experience: 7 months, can't start counting in years for a while yet.

The shotgun approach to a planted tank with an LED fixture

Small scale nitrogen cycle with a jar, water and fish food; no substrate, filter etc
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post #36 of 39 Old 01-03-2013, 10:20 AM Thread Starter
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Right. H2S is a product of an anaerobic process which is not generally something that can happen unless you have some deep substrate. I'd take my chances.

Jeff.
Thanks Jeff, that confused me a little
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post #37 of 39 Old 01-04-2013, 02:48 AM Thread Starter
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Update: My nitrate levels have come right down to 10ppm overnight. I can't really believe it. I am shocked, but in a good way
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post #38 of 39 Old 01-04-2013, 09:24 AM
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Update: My nitrate levels have come right down to 10ppm overnight. I can't really believe it. I am shocked, but in a good way

Good and amazing isn't it?


I remember my "fighting" nitrItes on my first saltwater tank. They lasted for weeks until I stopped adding food. Then a week later they dropped to 0 in a couple of days.

Who says good things don't happen fast.

The second most enjoyable shocking thing was when nitrates did as your's have.

congratues.

worth much more than my usual.

.02

maintain Fw and marine system with a strong emphasis on balanced, stabilized system that as much as possible are self substaning.

have maintained FW systems for up to 9 years with descendants from original fish and marine aquariums for up to 8 years.

With no water changes, untreated tap water, inexpensive lighting by first starting the tank with live plants (FW) or macro algae( marine)

see: http://www.tropicalfishkeeping.com/a...-build-295530/
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post #39 of 39 Old 01-05-2013, 04:56 AM Thread Starter
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They've come down even more now - about 5ppm. It's a great feeling looking at my fish and knowing they are swimming around in nice water.
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