Biofilter 'Socks'

We are introducing Biofilter 'Socks' (plastic fruit and veg bags) to hold the filter medium/material. Up to 20 socks- 1m * 20cm will be filled with filter material and then inserted into our Biofilter. We will experiment with other medium including cleaned oyster shells.

Filter Backwash and rinse today. Replenished water with Tank water approx. >100l. Concerns over lack of rain to replenish rainwater tank.

All fish thriving.