Thank you for the response , are you using anything else other than the siporax ? how much are you using in how big of a system ? i bought the largest box available so i have a section in my sump that is roughly
22 x 10 x 18 stacked on top of each other , now based on the information below and the amount i have my question is should i take some out or leave it alone and add more bio load ?
This is a section from the description of Siporax ;
There are oxygen-poor conditions within the tunnels. This makes the bacteria crack nitrate to get enough oxygen. Consequently, they continuously break down nitrate, and the pond water remains low in nitrate. The surface of one liter (one US quart) of sera siporax Professional has almost as much biological breakdown power as 34 liters (9 US gal.) of clay filter material. Calculation formula for sera siporax pond: One single liter (one US quart) sera siporax pond is sufficient for purification of 1,000 liters (264 US gal.) pond water with 20 pond fish of 10 cm (4 in.) length each or a comparable stock [representing approx. 1.5 kg (3.3 lb.) of fish fed with up to 40 g (1.4 oz.) high quality food per day] and release it from organic pollutions in long terms.
If just one liter can do this i can only imagine what 50L does ?
Now every bit of my water has to pass thru these , i did remove all of my marine pure blocks as i had 3 , the siporax has been in my set up now about 5 months . I have also added a few more fish to increase my load ...... hoping to get a balance going with nutrients ,