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Topic Review (Newest First)
02-16-2012 09:04 PM
proaudio55
Quote:
Originally Posted by treetom View Post
Coal slag is the left over material of coal being burnt in power plants. I used to unload coal trains and seen hills of the stuff. They sell it for other things as well like for ash trays, putting down on snow and ice, as well as blast media. The chances of getting metal in your bag is good because most coal burning power plants burn a small (compared to the amount of coal burnt) percentage of shredded tires. And tires contain wire and would then possibly not be consumed in the burning process. Also sand or stone fragments would contain silica which would turn to glass given the high heat that the coal is burnt at. Actually, a lot of elements and compounds could fuse to form glass like material given the extreme temps they would be subjected to.
Good call treetom!! I totally forgot about power stations burning TDF ("Tire Derived Fuel") If inquiring minds want to know, they do that because it counts as burning a "renewable fuel" (in terms of the hippies and their "green energy" initiatives.)

...and let's not turn this thread into political bickering please.
02-16-2012 05:59 AM
treetom Coal slag is the left over material of coal being burnt in power plants. I used to unload coal trains and seen hills of the stuff. They sell it for other things as well like for ash trays, putting down on snow and ice, as well as blast media. The chances of getting metal in your bag is good because most coal burning power plants burn a small (compared to the amount of coal burnt) percentage of shredded tires. And tires contain wire and would then possibly not be consumed in the burning process. Also sand or stone fragments would contain silica which would turn to glass given the high heat that the coal is burnt at. Actually, a lot of elements and compounds could fuse to form glass like material given the extreme temps they would be subjected to.
01-25-2012 01:33 AM
monkeyfish With the Black diamond you want 20/40 grit.
01-25-2012 01:26 AM
proaudio55
Quote:
Originally Posted by Profector View Post
Looks good, what grit size did you used?
the bag says "1.5-2.0 mil anchor profile" ++awkward silence++ (???) . . . I call it "fine"

01-25-2012 12:33 AM
Profector Looks good, what grit size did you used?
01-24-2012 11:21 PM
Daximus ^^^ That looks real good! At worst you will end up with a natural "dirt" look if they ever get totally mixed up.

To those other posters concerned about the "shards". I had a few of those I noticed in my 3 bags of the stuff. When I spotted them I pulled a couple out...no ill effects to any of my fish.

Couple of mine were indeed metal shavings of some sort...who knows. After all folks, it's an industrial by-product commonly blasted out of a gun to remove paint off cars, lol. My point being that it probably hasn't been inspected for purity at the level of something that was intended to go in an aquarium. So, as with any DIY project...a bit of self inspection and an acceptance of slight imperfection should probably be the norm. You might wanna sift it, you might wanna rinse it, it might take a bit of work. Good news is you just saved $100 on black sand.

All kidding aside my corys are fine, my shrimp are fine too, and even my "special" oto that thinks it's a cory is fine. (He tries the whole sucky sucky thing on the black diamond substrate. Very funny.)
01-24-2012 11:08 PM
proaudio55 As requested: I don't know how this will ultimately homogenize out (in terms of black:tan ratio) But it looks good to my eye. And I had to shoot these with a flash, so the color may be a titch off. In a 72 gallon bow, each 50lbs bag => 1" of substrate thickness (aprox).







01-24-2012 07:28 PM
proaudio55
Quote:
Originally Posted by In.a.Box View Post
Got pic of the 72? I would to see how black and pool sand mix.
I'm at work at the moment, but I'll post one when I get home . . . (don't tell my boss I'm on here )

Quote:
Originally Posted by In.a.Box View Post
Is the 20-40 bigger then the 30-60?
Yep, 20-40 is the coarser stuff . . . I don't recall off hand how they come up with those numbers but even the 30-60 should be fine. The biggest concern are SUPER fine particles because those will make your water murky / cloudy.
01-24-2012 06:58 PM
In.a.Box Is the 20-40 bigger then the 30-60?
01-24-2012 06:57 PM
In.a.Box
Quote:
Originally Posted by proaudio55 View Post
IMHO 1.5-2lbs of sand per gallon. So a 75 I'd suggest 100lbs (2 bags) or if you want a deeper bed I'd do 150lbs (3 bags).

In my 72 bow front I have 2 bags of tan pool sand and 1 bag fine coal slag for a total of 150lbs of fine substrate. I like the results . . .
Got pic of the 72? I would to see how black and pool sand mix.
01-24-2012 06:38 PM
proaudio55
Quote:
Originally Posted by In.a.Box View Post
I try the magnet nothing stick to it.

How many bags should I use in a 40B and 75?
IMHO 1.5-2lbs of sand per gallon. So a 75 I'd suggest 100lbs (2 bags) or if you want a deeper bed I'd do 150lbs (3 bags).

In my 72 bow front I have 2 bags of tan pool sand and 1 bag fine coal slag for a total of 150lbs of fine substrate. I like the results . . .
01-24-2012 06:04 PM
djscotty I just did a couple of thorough washes and then transferred to the tank. I then had a old HOB filter that I used for a couple of days and all of the oil disappeared and haven't had any other problems.
01-24-2012 05:39 AM
In.a.Box i wash and wash and wash but still see oil.
how do you people get rid of the oil?
01-22-2012 11:35 PM
In.a.Box I try the magnet nothing stick to it.

How many bag should I use in a 40B and 75?
01-22-2012 11:24 PM
xxbenjamminxx
Quote:
Originally Posted by klaus07 View Post
You might try using a magnet to see if any of those pieces have steel in them. At least some of them look metallic. I would do that before the sand gets wet.
+1 to this. I thought of this last night laying in bed of all places. LOL Might be worth a shot since I dont think the actual coal slag should be magnetic.
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