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Restarted my 120 Ltr Tank

This is a discussion on Restarted my 120 Ltr Tank within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I can see your point, the C02 set up was not expensive and I hope it will help get the plants established. Concerning the ...

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Restarted my 120 Ltr Tank
Old 03-11-2013, 01:13 PM   #21
 
I can see your point, the C02 set up was not expensive and I hope it will help get the plants established.

Concerning the wheel breaking the surface, I was under the impression that the surface needs to be broken to help oxygenate the water. The air stones that people put in the tank does the same.

Don
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Old 03-11-2013, 01:42 PM   #22
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Quote:
Originally Posted by Dovie View Post
I can see your point, the C02 set up was not expensive and I hope it will help get the plants established.

Concerning the wheel breaking the surface, I was under the impression that the surface needs to be broken to help oxygenate the water. The air stones that people put in the tank does the same.

Don
Aerate the water perhaps. I would expect that without dripping O2 into the tank it won't oxygenate so much as off gas the CO2.

When we test tap water right from the tap the abundance of CO2 in the water skews the pH readings. Shaking the water in a bottle for a minute off gasses the CO2 to the normal capacity for the water and the pH will be more accurate. While shaking a bottle is obviously more vigorous than a bubbler, it does the same thing. The plants serve to produce O2 which is in the water for the fish to use.

The best source of nutrients for the plants becomes the ammonia (nitrogen source) and CO2 (carbon source) that the fish produce and either trace minerals in the water or in a fertilizer that we add. Alternatively the carbonic hardness in the water is another source of carbon (Calcium Carbonate). Of course adding other supplementation might be necessary in order for the total balance to allow the plants to take up the ammonia and CO2.

Only after the total supplement balance is established along with the light required to allow the plants to photosynthesize everything and CO2 is found lacking should it need to be added. In some high energy systems the nutrients and light are overdriven intentionally and more carbon is needed to allow the plants to use everything that is thrown at them. Perhaps CO2 is the easiest to add at this point, I might think that increasing the KH to compensate for it's reduction may be as effective.

In my first tank setup I had one fish for a period. Plants thrived. KH lowered as much as 25% after water changes as plants used what they could from it. Added lots of fish, KH is now stable, plants are growing about the same... fast. I have a small plant only test tank on the go. KH has gone down over 50%. I'll be adding water to bring it back up this weekend and adding a few more plants even though it is already heavily planted.

Plants will take carbon from where they can and I'm not certain that CO2 is the easiest source to provide this even if it might be the easiest for the plants to utilize.

Jeff.
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Old 03-11-2013, 02:43 PM   #23
 
Thank you for you reply, I will keep you posted in about 4 weeks with the progress.

Don
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Old 04-18-2013, 09:28 AM   #24
 
I am amazed how clean tropical fish are..

Hi,

Its about 6 weeks since i restarted my tank, I returned the Pleco to the LFS. about 3 weeks ago and added 4 Guppies, 1 male and 3 female. Unfortunately the male died after a about 5 days. I also added a male and female Platy.

All the fish are doing fine including the SAE's and the Neon Tetras that I had originally. However it would appear that the female Guppies are all pregnant, they are all getting fat and the gravid spot is showing quite dark. Its no wonder the male died!!

The plants are growing like mad and I had to cut some of the really fast stuff back today as it was blocking the light.

I have just done my weekly water change even though the parameters could not be much better. I have also checked the Eheim filter and I am amazed how clean the tropical fish are after keeping goldfish. The filter looked as clean as it was a month ago with just a few bits of plants on the course filter.

I have only couple of little problems, the Kh is creeping up and lots of tiny snails have appeared. I have a large apple snail about a year old, so I can only guess they have arrived on the plants.
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Last edited by Dovie; 04-18-2013 at 09:42 AM.. Reason: Adding photo
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Old 04-18-2013, 10:13 AM   #25
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Tank is filling in nicely. Looks great.

The KH is creeping up? what did it start as and what is it now? The only reason I can think of is your source water changing. Is your GH moving as well?

As far as little snails, if they keep getting more prolific you can lower your feeding portions, gives them less extra food to thrive on. I have snails come in on plants but I don't mind them at all... but they havent' gotten out of hand. I can count perhaps 4 at any one time... they are just pond snails. The office tank has lots but they are some sort of curled shell snail, never larger than 1/8" across and they are almost not visible as they hide in the substrate.

Jeff.
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Old 04-18-2013, 11:45 AM   #26
 
It looks like it could be the the source water, cant say I noticed it before though, the dip test was always in the green zone. Just checked it and its starting at 10ēd and i'm reading about 15ēd in the tank.

I also noticed the Nitrates in the source water is much higher than usual about 25 and my tank reading has gone up as well. when I checked before the water change it was around 10 in the tank. Another thing the pH is also a bit high, it was at 7 and that's gone up to 8 which is the same as the source water. (ammonia and nitrites zero)

I'm not worried about the snails it looks like I have a mixture around 10 I have spotted so far, some grey, black, transparent and orange. All different shapes ranging from about 1/16" to 1/4 so I am guessing they may have been eggs when I got them.
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Old 04-18-2013, 12:43 PM   #27
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Coloured snails... I wouldn't mind them.

If your source water is 25 ppm nitrate you will want to consider filtering it... Abbeysdad has some experience with this problem. You can stock the plants to take up some nitrates but if you are adding that much at a change I think reducing it before it goes in would be prudent and mor effective than plants.

If the KH, and probably the GH, are going up, it would stand to reason that the pH will go higher as well.

Jeff.
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Old 04-18-2013, 01:22 PM   #28
 
Thank's Jeff,

I will look into it. I did see a reverse osmosis unit in one of the LFS think I might invest in one. Bit pricey around €80. I can get the RO water from the shop but its too heavy for me to lift at my age.

Dovie
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Old 04-18-2013, 01:48 PM   #29
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There's some sort of filter media that absorbs nitrates and I think is recharged by running slat water through it... or something. You might want to look into that, maybe PM Abbeysdad I'm sure he wouldn't mind... it's got to be cheaper than shelling out lots of cash for an RO unit.

Jeff.
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Old 06-16-2013, 12:39 PM   #30
 
My tank now after three months.

Plants are growing like mad, had to cut them back during the last water change as they were blocking out the light.

I took out the big hollow plastic rock as it trapped and killed my apple snail, I added a few more plants which helps keep the nitrates down. I also added a few more fish and the Platy's had a couple of fry, the first arrived about 6 weeks ago and the second one 2 weeks ago.

I am well happy with results of tropical fish keeping.

Thanks everyone for the help you have given me.

See attached.

Dovie
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