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Results 1 to 10 of 13
  1. Default Beneficial uses for aquarium waste water

    0 Not allowed!
    After cleaning the gravel and filters in your aquarium you're left with a bucket of dirty, smelly water. I typically have been watering my shrubs/bushes with this as a liquid manure.

    Here is a definition of liquid manure I found in an article titled Notes on Compost Teas
    Liquid Manures-
    "Mixtures of plant and animal byproducts steeped as an extract—stinging nettle, comfrey, seaweed, fish wastes, fish meal. Liquid manures are a blend of marine products (local fish wastes, seaweed extract, kelp meal) and locally harvested herbs, soaked and fermented at ambient temperatures for 3 to 10 days. Liquid manures are prepared similarly to herbal tea—the material is fully immersed in the barrel during the fermenting period, then strained and diluted and used as a foliar spray or soil drench. Liquid manures supply soluble nutrients and bioactive compounds."

    A brief explanation on the use of compost teas as an organic fertilizer. Compost teas are used to add beneficial micro organisms to soil which helps break down organic matter into Nitrogen for plants. In return, plants feed the micro organisms sugar. This is the process of fertilization mother nature intended.

    Compost tea is made with a pound of compost wrapped in cheesecloth and placed in a barrel. It is filled with water and a cup of molasses (which is the food for the micro organisms). Last you need Oxygen, so a pump is needed. This ferments for up to 7 days. The mixture is then used as an organic fertilizer.

    People also use compost teas to speed up the length of time it takes to make compost. It just occurred to me today that I could also use my aquarium waste water on my compost pile to add beneficial bacteria to speed up the composting process. So instead of taking 2-3 years to make compost I could possibly have it in 1. This is just my guess though, time will tell if it speeds things up.

    To conclude, I have never gone so far as to brew my own compost tea. It seems quite easy to do and my lawn would definitely benefit from it. I just notice alot of similarities with making the tea and the nitrogen cycle of a fish tank. So instead of dumping your dirty aquarium water down the drain you could be using it as an organic fertilizer to feed your plants or adding micro organisms to your compost pile.
    Last edited by openbook; 10-24-2010 at 10:25 PM.

  2. #2


    0 Not allowed!
    I used mine on tomato plants for years. Really helps to make them grow

  3. #3


    0 Not allowed!
    During the summer months, I will take the water from cleaning my filters and dump it in the flower beds
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL=""]

  4. #4


    0 Not allowed!
    I use all mine to water our avocado tree's, since i've been doing that it produces huge avocado's and our tree's have grown to over 20 feet!
    "Fear is the path to the dark side. Fear leads to anger. Anger leads to hate. Hate leads to suffering."

  5. Default

    0 Not allowed!
    If you are changing your water at good interval there will be next to no nutrients in there that the plants will benefit from to any great extent.That being said ,its water and plants need water.

  6. #6


    0 Not allowed!
    I use it on my plants, both indoor and outdoor. Plants grow beautifully from the nutrients in the water

  7. #7

    Join Date
    Jul 2010
    British Columbia, Canada

    Awards Showcase

    No Message - korith another pleco for your AC Tank - Northernguy Good job with your filter - Cliff No! You're banned for sending me a gift.. : ) - Little Embers Any more pleco's and your going to need a bigger tank. - gadget228 
    Now you must get a bigger tank : ) - Little Embers Careful! They're breeding LOL! - Little Embers thank you - Jacko Thanks for the rep - Cliff I couldn't find a new filter for you, but this is cool - Cliff 
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    0 Not allowed!
    I used to water the lawn with the dirty tank water. I would water the house plants with it but the dog and cat might be attrated to the soil. Now I just dump it down the toilet. I know, I'm boring.
    26 gallon- 1 Clown Pleco, 3 Rummy-nose Tetras
    Read about my fish in my blog:

  8. #8


    0 Not allowed!
    I water my little vegetable garden with aquarium water in the spring/summer and I keep a few pots of fresh herbs going so they get the water as well. I dose my tanks with alot of ferts and usually rinse some filter media out in the water before taking it out so Im sure it has benefitial properties to the plants. My tomatoes and bell peppers always grow like spastic weeds.
    3x75 gallons|2x55 gallons|2x50 gallons|3x40 gallons|1x29 gallon|1x10 gallon

  9. #9


    0 Not allowed!
    I use it for my garden and indoor plants. My trees and bushes are doing much better, since I have fish!

  10. Default

    0 Not allowed!
    I water the inside plants with the water, the high nitrates are great for plants, also if you start off your garden plants in the spring time inside

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