Ok, so i have always wanted an octo for a pet...... I have an extra 55 gallon tank now, so i have been researching, and I am looking to start pricing out supplies. so far the list of things i know i need before i can even think to start cycling or adding water or anything are: Protein Skimmer - Aqua C Remora - hang on type Aquarium substrate Filtration Live rock Test Kits Air pump Lighting/hood Heaters/thermometer Salinity meter Aquarium salt i beleive i have found the protein skimmer (the one listed above) My next biggest question, is how and what 'type' of live rock and sand. I know i need a fine sand, and i'd prefer to go with a deeper sand bed. I'd like to go out the next few weekends and price out sand and rock, but not to sure how much would be recomended for a 55 gallon long tank? Is there a rough poundage recomendation (i.e. so many pounds of live rock per gallon or anything?), so i will have something to go by?