Tropical Fish Keeping - Aquarium fish care and resources

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-   -   46 gal tank has been cycling since 11/6/12 (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/46-gal-tank-has-been-cycling-122928/)

Sqbear46 12-17-2012 04:42 PM

46 gal tank has been cycling since 11/6/12
 
I've been testing my water using the API Master kit. My Ph is still a bit high at 7.4 so i'm still doing 40-50% water changes once per week, everything else is within the normal ranges. I have added plants (been adding the plant food 2x's per week) and some driftwood (that i let sit in water for 24hrs).

My question is when i finally get my ph down to 7.2 (or close) do i then do a 50% water change right before i add the fish? The 1st few fish i add will come from already established tanks i have, i remember reading to add a few at a time. I'm in no hurry the tank will be done cycling when its done.

My water is a light green color i'm sure due to the addition of the plants.

As of right now i don't know what kind i will be getting. I have 2 huge dwarf Gourami's, a Pleco and a trio of clown laoches that need to be moved to this bigger tank from my other tank.

Thanks for all the great help.

Byron 12-17-2012 05:31 PM

I'd like to understand what you're doing a bit better before suggesting something.

A change in pH from 7.4 down to 7.2 is all but insignificant so I wouldn't fuss with this. But, what is the pH of your tap water, for comparison? I'd like toknow if it is moving up or down in the tank. Remember when testing tap water pH to briskly shake a small jar of tap water for several minutes to out-gas the CO2, then test.

Can you explain what "everything else is within normal ranges" means? Ammonia, nnitrite, nitrate presumably, but what are the numbers?

And you have this tank fairly well planted, by the sound of it. Water shouldn't be green though...is it actually a green cloudiness?

Byron.

Ivanrad 12-17-2012 05:41 PM

personally with my tank, i started out with starter fish . Platys, zebra danios, bloodfin tetras, black widow tetras. They cycled my tank i added plants that i always washed off before i put them in. My tank is loaded with plants that absorb the nitrates and fish waste etc. I think i use my test kit once every month in a half. I always filter my faucet water than add water dechlorinator per top off every week. water changes every 2 1/2 weeks 45% . i recommend using less plant fertilizer since your fish make alot of the fertilizer for your plants. maybe thats contributing to the PH. What type of filter do u have? i use a couple of drops of accuclear every 2 months.

JDM 12-18-2012 08:24 AM

Quote:

Originally Posted by Byron (Post 1352471)
Remember when testing tap water pH to briskly shake a small jar of tap water for several minutes to out-gas the CO2, then test.

Without going and looking it up (lazy), what difference does the CO2 make for this test? I'd never read this anywhere else yet.

Jeff.

Byron 12-18-2012 10:45 AM

Quote:

Originally Posted by JDM (Post 1353088)
Without going and looking it up (lazy), what difference does the CO2 make for this test? I'd never read this anywhere else yet.

Jeff.

The level of CO2 dissolved in water is one factor in the acidity. CO2 forms carbonic acid, and this lowers pH as the water acidifies.

For example, when high-tech planted tank aquarists bubble CO2 into their tanks, it always lowers the pH. Similarly, in low-tech natural planted tanks the fluctuation in CO2 during each 24 hour period, what we call the diurnal pH fluctuation, is due to the CO2 increasing during darkness and then decreasing during daylight when plants are using it.

In the case of tap water, it may contain CO2. Some tap water is high, some very low. This lowers the pH, so if you test tap water straight from the tap, you may get a pH of say 7.2, but if you out-gas the CO2 either by shaking briskly or letting it sit out overnight you may find the pH is 7.6 or 7.8. These numbers are just for example, every situation can be different.

CO2 will dissipate out of the water due to the gas exchange as oxygen enters.

Byron.

Sqbear46 12-18-2012 03:17 PM

Thanks for the responses all,
I'm so busy for the next few days but I will come back with my readings.

Oh and no the water is not cloudy just a light green color. I did add a lot of plants in 2 days time. Also my heater is turned to 0 and the tank digital thermometer is reading 86* I call feel the heat coming off the tank when I walk by it.

Now this tank plus heater was given to me and I have no idea how old the heater is, so I'm going to the pet store in the next few days to replace it with new one. I have unplugged the heater as of today.

Sqbear46 12-19-2012 01:14 PM

Ok I have the readings from the API test kit.

Ammonia 0
Nitrite 0
Nitrate 0
Ph 7.4

Thanks for your help

Byron 12-19-2012 01:20 PM

Quote:

Originally Posted by Sqbear46 (Post 1354803)
Ok I have the readings from the API test kit.

Ammonia 0
Nitrite 0
Nitrate 0
Ph 7.4

Thanks for your help

Is this pH the tank water, tap water, or both? Test both (remember my earlier advice on testing tap water) for an indication of the shift.

Sqbear46 12-19-2012 01:35 PM

Oooppppss sorry Byron i forgot. I will bew back with that. Those were from the tank.

Ok the tap water Ph is: 7.6

Byron 12-19-2012 03:18 PM

Quote:

Originally Posted by Sqbear46 (Post 1354839)
Oooppppss sorry Byron i forgot. I will bew back with that. Those were from the tank.

Ok the tap water Ph is: 7.6

Fine, there's no issue here. Your pH in the tank should remain close to the tap. So back to your earlier comment about working to lower it to 7.2 and it not remaining, have a read of this article:
http://www.tropicalfishkeeping.com/f...quarium-73276/

If you have some reason it should be lower, we can discuss. But at the moment, things are looking fine.

Byron.


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