I would like to upgrade from an established planted 55g to a 75g tank. Any hints/suggestions/does-donts would be greatly appreciated. I don't have the room to keep both tanks (at least not at this point), and the new tank would go where the current one is located. I plan on saving and reusing as much of the exisitng water as possible. The same for the eco-complete substrate. What kind of cycling time can I look forward to? Current tank as 4 Peruvian Altums, 1 dwarf pleco, and about a dozen total small tetras (neons, glowlights, lemon tetras).