1. Is CC any good for a substrate? I have been reading that the little worms and stars cant live in it.
2. Can I just add sand to the crushed coral?
3. I canít find any LS around here. What other kinds of sand can I use instead? The lfs has fine and medium grit sand that they sell, can I use that? (There is no Southdown sand around here either)
Basically im just wondering if I should keep the CC and what my options are.
these are just my opinions and comments from my experiences with CC
as a substrate as that is what I have in my 55 tank.
1) good or not is a matter of opinion. It has pros and cons just as any other substrate. It CAN house worms and bacteria and pods
, but what kinda is more limited than what you'll find in sand. Depending on your bioload you may also have issues with Nitrates building up over time with a CC
substrate. The thrid stage of de-nitrification is severly lessoned with a CC
2)you "can" certainly. It will add some bulk to your sand bed but it will eventually settle down to the bottom of the bed and leave you with CC
on top and you will no longer see the sand. Also, the worms etc that live in the sand will only realy thrive while the sand is near the top. Once it settles to the bottom those pods
and worms won't survive that deep in the bed and you'll be back to where you were.
3) any "sugar sized", sterized, pure silica sand will be ok. Oilithic (calcium based) sand is best (this is what southdown is). Southdown is a seasonal product that comes under many names, yard right and old-castle stone products. Come spring time, you may have better luck finding it. If you have the cash and don't mind spending the money, you can buy the Carib Sea sand from your LFS
, but that can get very expensive. You are best off buying dry sand in bulk as described above and then adding a few pounds of LS
, if you can get access to some good sand, I would swap it out now. You're only halfway through the cycle and if you have no livestock in the tank you are MUCH better off swaping it now rather than later.