Can I reuse a sand bed?

[sidd129]

I will be moving from a 75 gal with a 3 1/2" sand bed to a 120 48X24X25. Can I use the sand bed from the 75 and add a bag of sand over the top? I didn't think that I should but I thought that I would check first.

[israelnajar]

You can if you rinse it really well. Although I would not recommend it.

[kaihonu82]

put new sand in and seed it with your existing sand.

[msn711]

I wouldn't recommend it either. I've tried, and even with rinsing, I always seem to end up with unexplained nitrates and corals just not looking as good. Could be coincidence, but I would use new sand and just see the new sand with a couple of cups of the old sand. Better safe than sorry.

[Phong33]

I'd only use the top inch of the old sand. Using all the sand from an established sandbed will release on ton of inorganic material and will be a big pain.

[salty55]

i have seen people do it and not have any problems. actually doing the same size uprade that you are

[sabbath]

I would only seed with the old sand. The old stuff is to dirty. Better to start fresh.

[DaltonJames]

ne w new new new new ne nw enw nw wnw en wn ewn enw en wn wne just get new stuff

[darkcirca]

I used my old stuff and didn't have a problem. Had 40lbs and added another 40lbs during my upgrade (56 to a 90).

[sabbath]

I have had Nitrate troubles in the past. I replace all my sand and they went to zero in about 1 1/2 weeks. Nothing else was changed. This sold me, I would never keep old sand after seeing this.
If you have a DSB, You definity don't want to use it.

[drummereef]

Clean sand is pretty sand, imo. I'd go for new dry sand. ;)

[sidd129]

I was just looking at a 120 today and I think I might go bare bottom. I'm thinking about moving out all my softies and going all sps.