[hfp75]

Sand looks good and if healthy is good for the tank.

By healthy I mean, sand is a bit of its own separate world in a tank. It can help with filtration. A healthy sand bed will have a bunch of snails and a few sand stars (depending on tank size). The key to a healthy sand bed is that it is being turned over frequently. A stagnant sand bed is bad news. If your able to maintain it then go for it!!!

If you are going to forget all about it and let it become a nitrate / detritus sponge then it's bad news.

When your fish die off you notice within a day or so, because you can see it. What's alive in the sand you can't see so you need to be very observant!!!

Also remember that when you clean your tank you should vacuum or siphon off/out the sand and take out a bunch each time, wash it and dump it back in..... just helps keep the brown sludge that can accumulate down.