Thank you for the replies.
We also wrapped sponge media on intake of HOB. So, the HOB didn't eat any fries but still fries don't like the fast flow generated by HOB. (Aqueon 30 on 20G tank)
So, the following is our plan for filtration change.
-----------------------------------------------
1. Put quite large sponge filter and run it with Aqueon 30 for 2 weeks to build up enough bacteria into the sponge filter
2. Remove Aqueon 30 HOB and put small Topfin 10 HOB with sponge intake. I cut the small portion of filter media from Aqueon 30 and put it into new small HOB for a while.
3. Eventually, we will run both top fin 10 HOB (small HOB) and large sponge filter
Please, let us know if you find any potential mistake which may harm to fries or RCS.
We also wrapped sponge media on intake of HOB. So, the HOB didn't eat any fries but still fries don't like the fast flow generated by HOB. (Aqueon 30 on 20G tank)
So, the following is our plan for filtration change.
-----------------------------------------------
1. Put quite large sponge filter and run it with Aqueon 30 for 2 weeks to build up enough bacteria into the sponge filter
2. Remove Aqueon 30 HOB and put small Topfin 10 HOB with sponge intake. I cut the small portion of filter media from Aqueon 30 and put it into new small HOB for a while.
3. Eventually, we will run both top fin 10 HOB (small HOB) and large sponge filter
Please, let us know if you find any potential mistake which may harm to fries or RCS.
