Im currently using a 30L Biorb as my tank and in the process of cycling it. I bought it before I knew any better but since I have it, Im using it. Although there are plans to eventually (within the next 3-4 months) replace it with something larger.
Now as you may or may not know, the biorb uses undergravel filtering and ceramic media on which to develop the biological filter. Before I started cycling the tank I removed the charcoal and zeolite from the filter it comes with, just leaving the sponge. In addition I added a mini fluval internal filter so I effectively have two filters.
Im planning on keeping a Blackmoor or other Goldfish in the tank for a few months (the fish will be bought as a juvenile so 30L will be adequate temporarily) but as they like to rummage on the bottom I dont think the ceramic media is suitable and could potentially damage the fish.
So the way I see it is I have two options. Firstly I could remove the ceramic media altogether and replace it with gravel/sand and run the risk of potentially losing a percentage of my biological filter or I could buy a different media to sit on top of the large ceramic media to make it more of a flatbed. I was thinking something like this would do:
http
/www.swelluk.c...-pro-25419.html
Can anyone suggest the best route?
Now as you may or may not know, the biorb uses undergravel filtering and ceramic media on which to develop the biological filter. Before I started cycling the tank I removed the charcoal and zeolite from the filter it comes with, just leaving the sponge. In addition I added a mini fluval internal filter so I effectively have two filters.
Im planning on keeping a Blackmoor or other Goldfish in the tank for a few months (the fish will be bought as a juvenile so 30L will be adequate temporarily) but as they like to rummage on the bottom I dont think the ceramic media is suitable and could potentially damage the fish.
So the way I see it is I have two options. Firstly I could remove the ceramic media altogether and replace it with gravel/sand and run the risk of potentially losing a percentage of my biological filter or I could buy a different media to sit on top of the large ceramic media to make it more of a flatbed. I was thinking something like this would do:
http
/www.swelluk.c...-pro-25419.htmlCan anyone suggest the best route?
