03-17-2013, 11:52 AM
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Originally Posted by Perlumia
That would be why they are so much happier in my sandy tank than in the pet store! I think my sand came from Home Depot, but I don't know the brand. Now that I've seen them on their "natural" substrate doing nose-dives into the sand (and watching it shoot out of their gills) I want to be sure they are OK on the substrate in the 75.
Yes, I've seen pool sand on the web but would have to research local suppliers. I read a lot about fish preferring darker substrates (and I have to say I like the dark look myself) so I'll do more research while my Brochis are in QT.
Thanks for the advice! Your tanks are amazing, BTW.
On the dark substrate, this is true, but one has to qualify what "dark substrate" means. Some "sand" is white and this is not good at all. You can sort of mitigate it by low lighting, lots of floating plants, and of course having the substrate almost covered with chunks of wood and/or dry leaves. But I like to see some open areas, which is essential with substrate fish like corys.
"Dark" to us and dark to the fish may not be the same. I mentioned the Quikrete Play Sand being identical to Amazonian sand. The photo below is of my Amazonian Riverscape 115g setup, which has about 40 corys now. This is the play sand. The corys have taken on good colouration over this. Interestingly, if you were to view them from above on this sand, and they were not moving, you would not easily see them; they are patterned to blend in with this sand, appearing like sticks and bits of debris, so birds won't spot them. You sort of get the idea of this in the second photo which happens to be of some of the whiptails. The "reddish" are the so-called red lizard variant and not a natural species, but the other larger Rineloricaria parva is a wild fish and you can see how from up above he would be basically unseen over this similarly-coloured sand.
I always say, follow nature and you can't go wrong.