New saltwater tank questions

[Dark_Angel_x322]

Ok so my parents are trying to set up a fowler tank that will eventually become a reef tank. It is a 90 gal tank with 125gal wet/dry bioball pump and everything. I am not 100% on all the stuff for the tank but I know they are having some issues. They are using a coral substrate and have a 7 lbs piece of live rock in it. They tried to get the cycle going by putting about 5 damsels and a clown fish in the tank... within 3 days all the fish were dead. They took some water to, i think, petsmart and had it tested and were told the ammonia and nitrates (nitrites?) were all normal. Should they add more live rock now to cycle it? They are also thinking of putting live sand in the tank. In your opinion should they take out the coral, mix it with the coral, or forget the live sand all together? Also any resources, tips, or anything to help them out would be greatly appreciated.

Thanks!

http://img.villagephotos.com/p/2003-7/265826/tank01.jpg

[Rebecca]

I'm not expert but I think they should add all the live rock they want for it also I like sand for a substrate but it all in what they want. I would think you could add the live sand and mix it together with the coral or just take the crushed coral out.

[Shane Tesser]

Try our new site www.allthingsaquatic.com there is lots of members waiting to help you

[Dark_Angel_x322]

i posted there with no replies yet :-(

[Shane Tesser]

There is a reply there now..the site is new..and alot less members..so youll have to be patient..but basically all the aquarium ppl use it now..so i will be closing this part of the site soon with only a link to the new site :)