seeding filters

Hello. I am cycling a new tank, a divided 10 gallon for two Betta fish. I have got a corner sponge filter running in each compartment but I’m replacing them as they are loud and float with the cylinder shaped ones. I already have a double headed sponge filter in my other tank (it’s been running...

I am shortly going to be setting up a new 5-foot (1.5m) 360 litre coldwater tank for my old goldfish and a few weather-loaches. They will be moving from their 180 litre tank, and I plan to use some of the media from their Fluval 206 filter to seed the new, larger 406 Fluval. Now, normally I...