How much sand do I need for a 55g mbuna tank? Do I use the same rule-1lb. of substrate for every gallon, as I have for gravel?
That 1 lb/gallon of gravel is only relevant if you're using an UG filter. Sand is another matter entirely; if the bed is deep you're more likely to get gas pockets unless you stir the sand when you do partials. That can be a problem if you stack rocks. For that matter, fish digging in the sand under the rocks can cause broken glass...
That 1 lb/gallon of gravel is only relevant if you're using an UG filter. Sand is another matter entirely; if the bed is deep you're more likely to get gas pockets unless you stir the sand when you do partials. That can be a problem if you stack rocks. For that matter, fish digging in the sand under the rocks can cause broken glass...