The lfs guy says that I should add 1 lb live rock a gallon whicn means that i have to get over 70 lbs. Isnt it a overkill?
Definitely not. The amount of LR
would be considered a minimum around 1.5-2 lbs/gal
is a better goal. You can use base rock (approx 50 lbs) and then buy LR
(approx 25 lbs) to seed the base rock. You can find good base rock on Hirock.com. That would be a min i would go with.
The lfs guy suggested to fill the tank with fresh water
Did you use tap or ro
water? if you used tap there may be elements in the water that you don't want in your tank. Not saying you can't use it just do so knowing what you are putting in your tank.
This is what I have assembled so far:
a) Oceanic reef ready (overflow) 72g bowfront
b) CustomSeaLife 48" strip with both moonlight and regular white light.
c) Oceanic reef ready sump
d) Rio+ 2100 powerhead
d) A heater
e) A thermometer
f) 20 lbs of live sand & 40 lbs of reef sand (non-live)
The only things i can think of are:
1. good test kit
2. good skimmer
3. a return pump for the sump (if not included)
4. maybe another PH
I'm sure there is probley something else but someone will chime in.
What wattage are your lights? (4-7 watts/gal
As far as the LR
as the only filtration i don't know so i will leave it for someone else to answer.