Substrate: Lime/Marble/Shell (010)

[Huyey]

I normally use crushed coral/gravel in my tanks but am thinking of using sand for one of my tanganyikan tanks. I am undecided as to whether to use river sand, coral sand or crushed marble. Can anyone who has used any of these provide their experiences with them? What are their prices and are there any things I should look out for?

Cheers, :D :D

Huy

[Exiledonmainstreet]

I prefer coral sand because of the high ph, which goes well with your tangs. It's also easier to clean, as it won't get sucked into the siphon as easy as river sand, especially when you have the crushed coral. Also when you use sand out of a river, you run the risk of introducing nasties to your tank, unless you thoroughly boil, and dry it first.

[Huyey]

I am thinking of using pool dust (marble sand) as it is cheaper than coral sand. Does anyone have any experience in using it and also, does it buffer the tank?

Thanks, :

Huy

[YeW]

Hi Huyey -

Crushed marble (pool dust) is a better environmental choice than coral sand. It works in exactly the same way (ie: buffers pH) - and comes highly recommended.

HTH -

[Exiledonmainstreet]

Hi. I wasn't recommending you go out and get your own "crushed coral". We can buy it in 40-100 pound bags here in our lfs. I don't know what you have available there, but I am one of the largest supporters of the environment, and environmental issues that you'll ever know. Good luck.

[YeW]

Hi EoMS -

I know :D. My point is though - this crushed coral comes from somewhere (reefs normally ). Marble is a better bet for it isn't likely to come from environmental sensitive areas .

[Mbuna]

what about 'sydney sand', i find it is cleaner than river sand and only costs 5 bucks per 20kg bag.

[YeW]

Mbuna -

Mini-crete at Lakemba sells pool dust (crushed marble) very cheaply .