I have been testing salts for a year or so now. With such a large tank I want to have a good foundation with a good salt and buying salt by the pallet means that I dont want to have a change of mind after a few weeks!
I bought a bucket of Royal Nature some time back and have been waiting to test it out.
The Salt. Royal Nature is another pharmaceutical grade salt coming from evap at the red sea. From what I have been told there are two refineries, one owned by Red Sea and the other by Royal Nature. Once the salt has been obtained by the evap process it is ( for simplicity) divided into 3 piles. Two of the piles go to the red sea plant, red sea owning one and D-D owning the other. From what I have tested this past year or so there seems to be very little difference in these salts.
This is only what I have been told by various reps so feel free to take it with a pinch of salt :twitch:
Right, on to the test.
The Salt;
A standard bucket size which cost about £50 IIRC
The test.
A 600 ltr vat filled with 493.5 litrs of fresh RO with 0 tds.
I added an old skimmer, 2 x 300w heaters and approx 10000lph in flow via two powerheads.
I also added two airstones to airate the water overnight.
Once the water was up to temp and airated overnight I added the salt.
Royal Nature recommend 1kg of salt for every 25ltrs. With 493.5 litres I added 19.74kg of salt.
After leaving the salt to mix overnight I got the following results. ( the temp was 26)
Specific Gravity. 1.026
Nitrates Zero (using D-D test)
Phosphates Zero (using D-D test)
Cal 445 (using D-D test)
Mag 1240 (using D-D test)
DKH 9.2 (using D-D test)
On the whole I am quite pleased with how easy the salt mixed and more importantly how clean it mixed. I will be doing approx 500ltr water changes per week/two weeks so a pallet of 36 buckets will last approx 40-80 weeks.
I also made a start on adding some of the electrics too