3 years ago #1
A sea of questions
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I am setting up a 55 gallon tank. I have read you can use this soil in your tanks with no ill affects. I also have read that it will kill all you fish. Does anyone have thoughts.

Posted on Aquarium Plants
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3 years ago #2
carl152
Silver Member
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yes you can use soil as a substrate, but it has to be completly organic and free from any in-organic compounds and and fetilizers. Using soil which contains peat will give your aqaurium a nice brown looking effect (Black water) and will help to stabalise PH and hardness.

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3 years ago #3
thea
Wiz
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Soil YES. Miracle Grow BIG BIG NO. Regular Miracle grow contains LOTS of fertilizer (which is how they can advertise that plants grown in miracle grow, grow larger) and common fertilizers are urea (AMMONIA) and nitrates. These are things you are trying to MINIMIZE in your tank, not ADD.

Miracle Grow has recntly come out with an Organic potting soil. I am not sure what is in that.

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3 years ago #4
mpurcell
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I've had the organic miracle grow potting soil in my tank for a month now and everything seems great. I put a layer of sand on top of it because the water seemed a little cloudy. The water cleared up and my betta, snails and a cory cat all are doing great. My plants look better.

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3 years ago #5
A sea of questions
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Thanks I'll. Go with the organic potting soil then. Did you have to mineralized it first? Was there any special process?

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3 years ago #6
mpurcell
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No I just put it in the tank and the sand on top. Hope it works well for you. I have other tanks and I prefer the Eco-complete substrate to the miracle grow. I think it looks nicer and is easier to maintain.

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3 years ago #7
Aquaria Custom Design
Guest

miracle grow makes an organic soil that is perfectly safe. I have been told not to use the miracle grow potting mix because it has wetting agents (chemicals that change the surface tension of water and other stuff, google "wetting agents" for more info). I used the potting mix in my 29 gallon before I knew this fact, but everything is fine and I have not had any fish die in a 6 month period. the potting mix makes a little bit more of a mess then the soil, so i have switched to using the soil mix instead of the potting mix. I buy my miracle grow organic soil from home depot. it's a big bag, (20lbs maybe) and it costs about $7.00.

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3 years ago #8
Aquaria Custom Design
Guest

eco complete is good and i may switch to that just because the soil tends to make a mess over time, especially if you move plants around periodically. soil is great other then the mess, and if you are careful and do some extra maintenance it is great for the plants. try adding some red clay or flourite plant substrate, both are rich in iron which is great for plants and also make the plants that have red colors more red and vibrant. if you use the clay, just roll it into little balls and push it down into the substrate spaced out 2-4 inches apart across the whole bottom of the tank.

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7 months ago #9
Kingfish
Guest

I have used it for many years and it was excellent. Just make sure you do the following: (1) Select a decent size pot (plastic). (2) Put a nylon filter media on the bottom to cover up the drain hole (about 1 inch) (3) Put a layer of pea gravel 1 inch) (4) Put plant in, cover the roots with miracle grow soil (5) add a layer of nylon filter media on top of the soil (6) top it off with pea gravel.
Gently put the pot in the water (to minimize free floating debris) and do not disturb. The plants do fantastic. I have raised some giant crypts and swords using this method. My tank have discus and angelfish with no issues. The fertilizer in miracle soil is trapped in the pot. Testing for nitrite and nitrate in the water is zero.

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