Tropical Fish Keeping - Aquarium fish care and resources

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TwinDad 07-10-2011 10:17 PM

Substrate Information
 
Just when I thought I had substrate figured out what I want in a 55, I read a few threads and now am not sure what I want.

Most of the Corydoras threads mention using sand as a substrate as it's not sharp. So I was about to go with sand when I read threads saying that the air pockets and depth needed for sand isn't going to be easy to maintain in a 55 gallon. (further more Bryon mentioning that he doesn't use sand in large tanks).

So sand would keep the detrieus and other things on the surface to clean up. In the planted tanks people mention to not vacuum the substrate if possible. So it seem small gravel would be ideal. It would let nutrients get to the roots. Mulm et all collect. So if I try and find a gravel that is sized from 1-mm would this be ideal for Cories?

My ph is about 7.5 out of tap, and it's 34-77 PPM hardness. I'm going to be keeping about 10 lemon tetras 12 cory ( bought as julli but I think they are trilineus.

ladayen 07-10-2011 10:52 PM

yeah Gravel is pretty standard. In regards to the fish you just want to make sure it isn't sharp. For plants is when the size comes into effect, if it's too small you cant get nutrients to the bottom, too large and the water will just push it around without letting the plants absorb it. 1mm should be ok but you can go to about 4.

I liked my lemon tetras. Had 3 for a month and they were doing fine. Then I found out they should be in groups of 6 or more so I went and bought 4 more. All 7 were dead the next morning, no signs of illness and my other fish were just fine.

1077 07-10-2011 10:57 PM

Quote:

Originally Posted by TwinDad (Post 730632)
Just when I thought I had substrate figured out what I want in a 55, I read a few threads and now am not sure what I want.

Most of the Corydoras threads mention using sand as a substrate as it's not sharp. So I was about to go with sand when I read threads saying that the air pockets and depth needed for sand isn't going to be easy to maintain in a 55 gallon. (further more Bryon mentioning that he doesn't use sand in large tanks).

So sand would keep the detrieus and other things on the surface to clean up. In the planted tanks people mention to not vacuum the substrate if possible. So it seem small gravel would be ideal. It would let nutrients get to the roots. Mulm et all collect. So if I try and find a gravel that is sized from 1-mm would this be ideal for Cories?

My ph is about 7.5 out of tap, and it's 34-77 PPM hardness. I'm going to be keeping about 10 lemon tetras 12 cory ( bought as julli but I think they are trilineus.

If plant's are in the equation, I would go with fine gravel as opposed to sand although I have grown plant's in sand with monthly addition of root tabs.
Gravel as long as it has no sharp edges would be fine for cory's and is what I have in planted tank with approx a dozen cory's who have been doing well for close to a year now.
Have also used sand with cory's, and so long as the depth is not more than two inches,,then chances of sulfide building up is of little concern. Trumpet snails with sand substrates are a good idea if one does not mind their presence for they spend their time burrowing through the substrate and this also reduces chances of anerobic conditions.
I do think nutrient's for plant's would be more easily available for plant roots with fine gravel as opposed to sand but as mentioned,,have grown crypt's,and sword plant's in sand by adding root tabs .
Hope this helps.

TwinDad 07-11-2011 05:08 PM

The Trumpet snails, I was considering those just to have as an interest item. Do those burrow well in gravel?

1077 07-11-2011 10:59 PM

Quote:

Originally Posted by TwinDad (Post 731706)
The Trumpet snails, I was considering those just to have as an interest item. Do those burrow well in gravel?

Yes.


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