I currently use gravel in my hypan tank but want to change to sand and re do the tank ready for breeding. It runs 2 filters. Fluval u4 which has been running about 3 months and a small tetratec one that came with my 60l tank. This ones been running a year. I've got some bogwood in the tank which has been in tanks over a year.
Would it be safe to change to sand?
Would it be safe to change to sand?