Raechal
Fish Gatherer
I really wanted to use play sand as the substrate but was worried maybe it would get sucked into the undergravel filter? I've never used an undergravel filter so maybe I can get some tips from someone who has?
I also heard larger fish were better with undergravel filters. Small ones would get sucked in?
I also heard larger fish were better with undergravel filters. Small ones would get sucked in?