Hu! Good to know. I much prefer the sand (both in look, ease of cleaning, and on my male bettas' delicate finnage!). A couple more questions, then:
A guy at the LPS told me not to use sand (they don't even carry it) because if the fish stir it up and it gets sucked into the filter, the filter is damaged/destroyed. Is this true? I don't really trust them and their advice at all (same guy told me I could keep 6 or so Severums in my 55 gallon tank! - yeah right), and I DO trust you guys completely, so? Is the filter thing an issue?
Also, okay, I understand about using playground sand. What about that black sand made specifically for aquariums? (Um... Tahitian Moon Sand it's called) I know it's more expensive, and I certainly wouldn't use it in the 55 gallon because of that, but I have a few 5 1/2 gallons tanks to fill for my male bettas, and the black sand might look nice. Is this not a good choice? I guess with black, I lose the ability to really see the poop though, huh?
What about other sands, like silica sand - no good?
And lastly, what about this thing I keep hearing about, about gases etc getting trapped underneath the sand, and if/when released, will kill the fish? Is it true that you have to stir it up every however many weeks to avoid this? Should I be using an inch or so layer of sand OVER gravel then, or just sand only? What's the benefit of gravel underneath?
sorry for hijacking your thread Winterlily
No problem! Lots of information contained in that hijack!
Thanks guys!