Changing from Crushed Coral to Live Sand

S

snowkitten

Guest
I was under the impression that live sand was better for the tank than crushed coral, so I was thinking/planning to change. Is this true? My tank has been established for about 2 years and everything is running fine. Would it be ok to, say change out 1/4 at a time, scooping out coral and putting in (rinsed) sand with a flex tube or plastic bag?
If not, I could board everything in a smaller tank, change out substrate. But, if I change out all at once, would my tank have to cycle again?
Is it worth changing cc out?
1 flame hawkfish, 1 blue tang, 1 mandarin dragonet, 2 clowns, 1 bubble anenome, 1 firefish, 2 yellowhead jawfish, 1 yellowtail damsel, 2 feather dusters, 1 pencil urchin, 1 horned back cowfish, 2 cleaner shrimps, 1 fighting conch, 25 Cerith Snails, 10 Nassarius Snails, 10 Astrea Snails
Fluval 405 & 305, 3 wavemakers, protein skimmer, uv sterilizer, heater, lights
 
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