Hi,
I have had an aquarium for a number of years but recently I have noticed the below. You can see from the red line I have drawn showing you the bit of sand I have cleared on the left and the problem area on the right.
If anyone knows what it is and how to get rid of it please let me know.
Kind Regards
Ali G
I have had an aquarium for a number of years but recently I have noticed the below. You can see from the red line I have drawn showing you the bit of sand I have cleared on the left and the problem area on the right.
If anyone knows what it is and how to get rid of it please let me know.
Kind Regards
Ali G