Latest posts by Dibbler

6 returned

Filter Medium

Posted: 20/12/2012 at 13:34

Yep Georg I know, I'm a zoologist by training!

Actually, you could analyse a lot of things to gain an insight. However, I agree. Try it and see....

So I am.

Filter Medium

Posted: 19/12/2012 at 20:12

Hi Alina

I think most of the 'impurities' will be tightly enough bound either physically or chemically so as not to leach out or not significantly so. After all they would be prety poor filters if the filtrate leaked out agian.

As they have been used to filter drinking water they don't contain anything too nasty, mostly calcium and potassium salts I would imagine As they've come from a filter kettle they have also been subjected to hight temperatues on numerous occasions and so microorganisms should'nt be a problem.

Though I would again be happy to learn more.

Thanks for taking the trouble to reply.

Best Wishes.


Filter Medium

Posted: 19/12/2012 at 14:06

I'm so pleased my 'nom de plume' brought back happy memories for you Dove. Gave me a smile to read your post.

I had similar thoughts about the inert nature of the granules Georg. My thoughts were that since the filters were exhausted, not new, and since my wife insists we 'get our money's worth' before we change them, that the activity level of the filter might be negligible. I have no way to confirm this other than knowing the ability to filter water does decrease and eventually reaches a point at which they are effectively useless. I also kno activated charcoal is not able to filter indefinitely. I do not know what the white substance in the filters is to be able to check.

Therefore I was willing to assume that their nutrient sequestration would be minimal if not entirely nil. Of course this is one of the reasons I asked the question, to gain any insight that members might have into any such problems.

I hope other members may be able to shed further light on the matter.

Thank you for your time gentlemen. A very merry christmas to you.



Filter Medium

Posted: 18/12/2012 at 17:08

On a whim, I decided to start collecting my old used water filter granules to try experimenting with it as a growing medium.

I know they can be recycled (though I don't know if the granules are reused) but I do not have anyone who offers a collecting service near by. As I do not drive due to epilepsy, wandering around trying to find somewhere isn't an optio either.

So after leaving them to dry, rather than just throw them away, I opened them up with a craft knife and collected the granules from within. Easily done I might add.

I've considered adding them to pot compost (indoor & outdoor), especially my orchids. Growing seedlings in it and using to improve drainage. Despite the fact it does drain very well, it remains moist for sometime. It's quite attractive too.  As I assume it is composed of activated charcoal (at least in part) I would imagine it does not cause any harm.

Does anyone have any experience of using this for growing plants or use it for anything else around the garden or home?


Best Wishes for a peaceful Christmas and New Year.



Old Aquarium Water Garden

Posted: 25/04/2012 at 20:47

Thank you to everyone for taking the time to read and reply. I'm very grateful for all the comments and ideas.

Gary  - Thanks for the links!

Firstly, I don't have any (young) children or pets. If I did I would never have considered the idea to begin. I take the point about about safety but I don't necessarily think a small aquarium would be any more dangerous than a glass greenhouse would be. Glass is dangerous, but with sufficient care taken I don't believe it would be a problem for me. But the point is well made. Thanks.

Temperature fluctuations. I considered this. I don't think that with careful placement this would be any more of a problem than it would for any other small volume of water. In fact by my rough calculations, approx. 29 litres is not that small a volume especially when it is contained within the confines of a tank. Temperature, and consequently evaporation, is much more likely to be an issue if the water volume is displaced over a larger area such as a childs pool I would imagine. I can't see the water boiling away in north Wales   During winter there is the problem of cracking the glass and this would need addressing. This more than heat, I suspect, would be the biggest problem.  the Nontheless it is a consideration.

I am aware that an escape route for potential illicit "skinny dippers" would be required. I did mention I would be using rocks which would provide the same and I have also planned to add some thickish ex-aquarium branches I have to provide further escape routes. I also imagine the plants would be useful for that too.

I am concerned about algae (I mentioned cutting down the light by painting) but perhaps this would rectify itself once the system had established itself and stabilised? One of the considerations in using the aquarium was that it was glass and we could see what was happening below the water line.

I thank everyone for their contributions. Much to think about.


Old Aquarium Water Garden

Posted: 24/04/2012 at 13:34


I'm new member and it's my first post so please forgive me if this is an inappropriate place to ask this question. 

I have an old glass aquarium. It is quite small (45, 30, 31 cm) and I was thinking I would like to turn it into a small pond/water garden.

However I'm not sure if it would be appropriate or where to start. My idea was to partially fill it with some substrate, probably a gravel beneath soil of some sort. Add stones and plants and wait for nature to do the rest. I had also considered painting some of the sides black to cut down on too much light promoting an explosion of algal growth?

Although I have experience keeping tropical fish, I have no real experience growing water plants, especially outside. So what I would like advice on, please, are the following points...

Suitability of aquarium in the first place.Substrate options. Species that are the best to use - clearly the point here is to encourage as much wildlife as possible so presumeably natives are the best option. Is painting a good idea or even necessary? Position - I live on Anglesey and my garden is south facing. So, it's either blistering sun (when we get any sun) or fairly hard shade, with few inbetween areas. Also subject to heavy rains and fierce winds (and I do mean fierce). Winter weather is cold and wet but hard frosts and snow are uncommon.

Sorry to go on, I'm trying to supply as much pertinent information without writing an essay.

Any help or advice no matter how small would be most gratefully received.

Very many thanks in anticipation.


6 returned

Discussions started by Dibbler

Filter Medium

Using water filter granules as a growing medium 
Replies: 7    Views: 1168
Last Post: 20/12/2012 at 13:34

Old Aquarium Water Garden

Advice about turning an old aquarium into a miniature pond or water garden sought. 
Replies: 6    Views: 4052
Last Post: 25/04/2012 at 20:47
2 threads returned