Sand vs. Gravel - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 30 Old 08-01-2006, 04:36 PM
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Originally Posted by Michael
Hi Libby, by "rays" do you mean sting rays? Are there freshwater sting rays?
Hi Michael
Yes, I am talking about freshwater stingrays. Although these are not common among most aquariums I was just using them as an example.
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post #12 of 30 Old 08-02-2006, 12:37 AM
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A lot can be said on the pros and cons between these two.
There's not much disadvantages with gravel.
For sand, one thing that can be a pain is that when they become compact, they create anaerobic spots. This alone produces much toxic gases thus killing the fish. You need to stir sand frequently to prevent compaction.

Brie is right about choosing substrate. If the gravel is sharp, then obviously your bottom dwelling fishes won't like it as their barbels get injured. Cories are the most vulnerable to this.

By the way, Brie,I have seen some freshwater stingrays in my two lfs but size is the problem. Even if I have to get another tank, this fish will still outgrow the tank. They are very rare and a few people can afford them.
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post #13 of 30 Old 08-02-2006, 09:14 AM
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you could mix gravel & sand ive seen people do that
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post #14 of 30 Old 08-02-2006, 09:16 AM
The only problem I've seen people run into is when the fish borrow or play in the sand they kick some up and it gets sucked into the filter which in turn can damage the impeller
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post #15 of 30 Old 08-03-2006, 11:39 AM
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Originally Posted by Blue
I have seen some freshwater stingrays in my two lfs but size is the problem. Even if I have to get another tank, this fish will still outgrow the tank. They are very rare and a few people can afford them.
Thats neat, I've never seen them for sale. But you also live in the Philippines. There must be different fish there, right?
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post #16 of 30 Old 08-03-2006, 11:49 AM
I've seen freshwater stingrays in the us, they are saltwater rays that have been caught up stream and have adapted to freshwater.
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post #17 of 30 Old 08-03-2006, 11:51 AM
I have seen them in the US too, in public aquariums and such, but I've never seen them for sale.
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post #18 of 30 Old 08-03-2006, 11:55 AM
It's rare to find them for sale but I have seen them maybe twice.
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post #19 of 30 Old 08-03-2006, 11:56 AM
Really? Where? How much did they cost?
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post #20 of 30 Old 08-03-2006, 11:58 AM
2 weeks ago I saw 2 that ran about 100-150 dollers a piece.
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