This Is Very Interesting

[Dude]

[/quote]
Have you ever seen the old shipwrecks in the sea, teeming with coral, shrimp and fish life, all growing on, and living near, the rusting hull of old ships? Iron (and other ferrous metals, which all rust) in the aquarium is not a problem. If you have inverts, then copper is.
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so what your saying is that its no problem ... but i can have snails in the tank?

 

[Inchworm]

Hi Dude

Since you keep corys, I just wanted to point out that they need sand or gravel with no rough or sharp edges to erode their barbels. The damage could be gradual, but very harmful to them.

Please double check to be sure there are no metal bits in it that could hurt them.

 

[Dude]

Hi Dude

Since you keep corys, I just wanted to point out that they need sand or gravel with no rough or sharp edges to erode their barbels. The damage could be gradual, but very harmful to them.

Please double check to be sure there are no metal bits in it that could hurt them.

i think its only dangerous in very small pecies cus its like glass when its like sand

but mine are pebbles that are not that sharp ive had corys for about 2 years and they are doing fine in my gravel

but thanks for asking ...
its people like you that make the aquarium world a better place by asking and makeing sure that fish hase suitable homes

 

[pica_nuttalli]

i'd still swap it.

about 6 months ago, we had a guy on here who put Black Beauty "sand" in his puffer tank. poor fish displayed an immediate negative reaction and died within two days.

although this was a puffer and therefore an unusually sensitive fish, i would still not call that substrate "fish safe". it is also highly unlikely that its only got iron in it; puffers are like invertebrate and are highly copper sensitive. plenty of other common aquarium fish (such as blue rams and clown loaches) are also copper sensitive and should not be kept in that tank.

my attitude towards any decoration that could potentially poison my fish is that i'd rather not have it in my tank.

 

[AnneRiceBowl]

my attitude towards any decoration that could potentially poison my fish is that i'd rather not have it in my tank.

agreed. get the substrate out of there. pronto.

 

[Waterloo Kid]

Iron slag contains all sorts of chemicals, including iron. I used to work in the steel industry. All sorts of chemicals are put into steel during manufacture. I personally would not put anything like that in my tank.

Most metals oxidise. Iron Oxide has the common name of rust.
Shipwrecks are situated in a vast, constantly replenished source of fresh sea water. You can't compare the sea/ocean with a fish tank, even swimming pool sized ones. Saying that, I've never heard of iron being a problem in a tank. In fact, some people add iron ions to tanks for plant growth, including me.


WK