I have a 4ft tank (48x15x18), a fluval 203 external filter, fluval u2 internal filter, 300w heater, 150w heater, 3 pieces of bogwood, large and small rocks, plants, moss balls, 2 lighting systems both with bulbs, 2 air pumps n stones, 2 silver dollars, 2 clown loach, 2 mollys, 3 yoyo loach, 5...