Forum home Tools and techniques
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

Fishtank gravel

Is there any reason I shouldn't use old fishtank gravel to mulch pots etc? It's been sitting in a disused tank in the shed for a few years and I've finally admitted to myself that the tank is never going to be used again. It's quite a nice grade for pot covering - about 3 or 4mm I'd say.


'If you have a garden and a library, you have everything you need.'
- Cicero

Posts

  • Pete.8Pete.8 Posts: 11,340
    Yes - it's ideal for that sort of purpose.
    When I emptied my tank I had a couple of barrow loads of gravel to dispose of.
    I used it as a mulch around strawberries and in other parts of the garden.
    No need to rise if it's 'dirty' - that's all goodness to plants

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • LG_LG_ Posts: 4,360
    Great 🙂. It's surprisingly 'undirty' - I think microorganisms must have been sorting it out all this time!
    Thanks 👍🏼
    'If you have a garden and a library, you have everything you need.'
    - Cicero
  • FairygirlFairygirl Posts: 55,117
    That's a great resource for your pots @LG_ and far better than it just lying around in the shed taking up space.    :)

    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • LG_LG_ Posts: 4,360
    edited November 2021
    I've already done a couple of houseplants and it looks good 👍🏼. It was a teeny tank so it's not going to go far, but I've started thinking it might be good for 'doing a Carol' on some seed sowings...
    'If you have a garden and a library, you have everything you need.'
    - Cicero
  • cornellycornelly Posts: 970
    I use fish tank gravel in trays to stand the pots of tomatoes, the roots go into the gravel, plants do well.
  • LunarSeaLunarSea Posts: 1,923
    If I had any fishtank gravel to spare I'd most certainly use it in the garden. But my tank is still going strong.

    However I do weekly water changes on my tank and all that nitrate-laden water goes into one of my water butts. Nowt gets wasted 'ere  :)
    Clay soil - Cheshire/Derbyshire border

    I play with plants and soil and sometimes it's successful

  • LG_LG_ Posts: 4,360
    I'm starting to wonder if I should buy some more 🤣
    'If you have a garden and a library, you have everything you need.'
    - Cicero
  • LG_ said:
    I'm starting to wonder if I should buy some more 🤣
    I do, quite often. Primarily for making succulent or cactus mix but it's got many horticutural uses - & is sometimes cheaper than Hort grit from the GS.
  • If I had any fishtank gravel to spare I'd most certainly use it in the garden. But my tank is still going strong.

    However I do weekly water changes on my tank and all that nitrate-laden water goes into one of my water butts. Nowt gets wasted 'ere  :)
    Ditto..
  • Helen P3Helen P3 Posts: 1,152
     it's got many horticutural uses - & is sometimes cheaper than Hort grit from the GS.
    It is.

Sign In or Register to comment.