Quote:
Originally Posted by VerdantGrotto First Question :
I will have around six or more Cory Cats and was wondering if the Sand at say Petsmart is okay for them? I believe the brand name of the sand is Argonite or Flourite or something like that. Not the live sand for Saltwater tanks obviously. I was pondering using black sand so the Diamond Tetras and the Corys Colors stand out a little better.
Second Question :
This is more of a what's your opinion type question...
Black Sand ? White Sand ? Tan Sand ? Play Sand ? Pool Sand ? Coarse Sand ? Fine Sand ? |
There are some issues here.
First, aragonite is a calcareous sand, meaning it contains calcium and magnesium, which will raise the GH and pH of the tank water. That works in marine setups (which is what this type of sand is intended for), or for rift lake cichlids or livebearers, but with soft water fish you do not want this. A substrate of aragonite sand (or gravel) will send the GH and pH soaring.
Second, Flourite is an enriched substrate (supposedly) intended for planted aquaria. It is debatable whether this substrate benefits plants or not; I have had it in one tank for over 15 months and feel I wasted my money, given the plant growth in this tank compared to my plain sand substrate tanks. But more to the issue, it is not a good substrate for corys and loaches. I had to remove the corys from my Flourite tank, they had developed mouth and barbel issues that completely cleared within a couple of weeks after being moved into the sand tank. And I have had catfish breeders tell me never to use Flourite or Eco-Complete with corys, so I now take that advice.
Black is also hit and miss. I found the corys are more colourful over a mixed sand. I went with play sand two years ago and gradually changed over five tanks. In appearance, this is near identical to the sand in many Amazon streams over which corys feel right at home. It is interesting that mine began spawning for the first time after 15 years when I changed to play sand; I can't say this is directly related, but it is interesting, when everything else has been the same throughout.
To your second question. White is not a good substrate; none of our fish naturally live over a white substrate, and in fact it can stress them because it is not natural. Black can be used to good effect, but having black in the Flourite tank I will say that it shows detritus much more than my mixed gravel and sand tanks, over which it is invisible.
Pool filter sand works for some, but as another member cautioned yesterday it can be rather sharp, which is not what you want with substrate fish like corys.
Which brings me back to the play sand mentioned above; the least expensive, and most natural...and my plants are doing well in it. There you are.
Byron.