Basically we were having a few phosphate problems in the coral systems at work but this was not being picked up by the test kits we were using. So we bought a spectrophotometer and got all the other aquarists to test several samples of water for different parameters using brand new test kits and...
I've done a bit of analysis comparing some test kit results from water analysed using a lab grade spectrophotometer and to be honest I got some shocking results.... Some of the test kits (the tests were done blind by people who didn't know the concentrations of stuff they were testing for) gave...
Have you bought one that uses deniballs? If so the recommended flow rate when working properly is 1-4ltr per hour. You are looking to avoid the production of hydrogen sulphide (rotten egg smell) in the unit (this happens if the ORP drops too low caused by too low a flow). The process by which...
Hi Reefres,
Seems a shame to waste the mature sand but depends on the purpose of the new sand bed. Are you going for a deep sand bed? Is the old sand aragonite?
