i can just add my own observations and 2 cents worth.. i ordered 12 of these blocks to replace my DSB in my 300 gallon horse troft sump. right now i do not have any sps to speak of.. tank crashed last year and redoing it.. but i purchased them with the advertising that they reduce nitrates. i have been keeping fish saltwater from the days of lift tubes and under gravels in the 70's. There are many ways to set up tanks. Mirical mud DSB, ect.
The point here is that these were sold as nitrate reducing - same as live rock.-- i think they are simply not Dense enough to house and maintain the correct dettrifiyng bacteria that is needed. I will give it more time. I will put some acrlyic around these 12 blocks and report back. Also, i am ordering the test kits today. what will be interesting is my levels.
The point here is that these were sold as nitrate reducing - same as live rock.-- i think they are simply not Dense enough to house and maintain the correct dettrifiyng bacteria that is needed. I will give it more time. I will put some acrlyic around these 12 blocks and report back. Also, i am ordering the test kits today. what will be interesting is my levels.