OK...so I have a 40 breeder, which I had set up a couple of years ago for Cichlids. I ended up moving for my job and had to sell the fish, but I kept the tank and all of my equipment. I'm ready to set the tank back up, but I found that the gravel in the tank has "hardened" and I can't seem to get it out. I'm afraid that if I use too much force I will end up breaking or cracking the glass in the tank.
1) Any ideas about what has caused this to happen and how I can correct it ?
2) Would it be OK to use "sand" instead of gravel this time for Cichlids ?
Thanks ahead of time for all advice and/or suggestions !
1) Any ideas about what has caused this to happen and how I can correct it ?
2) Would it be OK to use "sand" instead of gravel this time for Cichlids ?
Thanks ahead of time for all advice and/or suggestions !