Been a long time since I last updated here. Lessons learnt in this upgrading so far...
1) Cycling of tank is def a must do regardless if one is using old live-rocks/sand with added new rocks/sand or dosing of beneficial bacteria.
2) Cycling duration must be at least 3-6 months if one wants a successful setup on the first time, every time basis. Usually days or weeks of a quick set-up can still be done but success rate of all the fishes surviving will be slim or zero!
3) Adding of new LS to the existing LS must be done slowly or best if left till the 3-6 months cycling is over.
The above 3 points are based on the re-using of old LR/sand adding with new LR/sand ("Live" sand or any marine sand) and even if "aged" water is used. Of cse with the used of "Live" sand, it does hasten the establishing of the eco system.
Water conditions...
1) If salinity is too high, usually this will caused sudden death of fishes (swimming/eating well one day and dead the very next day). The symptoms (of the dead fish) can be harden/stiffness of the fish, bloated stomach, faded white patches on body etc. High Salinity can also encourage high growth of itch attacks on fishes. Fresh water dips are known to get rid of these itches but care has to be taken cuz fresh water dipping can caused shock to fishes if not done correctly. There other ways of getting rid of itch is to douse anti-itch. Do not over dose if keeping a mixed reef.
Feedings...
1) Watch ur feedings or reduce feeding during the initial set-up. Give the system some time to build up it eco system. Do give garlic dose during feeding time to strengthen the fishes immune system.
Tell tail signs of a stabilizing tank...
1) The appearing of new feather worms, pods etc, in the sump tank or main tank is an indications that water conditions are establishing well or good. The other tell tail sign is the breeding of shrimps such as cleaner shrimps, anemone crabs etc.