great post The V! :thumbsup:
One thing to keep in mind concerning the algae is that a) 11 hours of total light, even with a split photoperiod, is a lot without live plants. Even then it would be overkill...and b) goldfish = high nitrates in a small tank. The two main causes of algae are too much light and excess nutrients, generally speaking. Cut back on both (try feeding less and possibly doing more frequent water changes for less nitrates) and see what happens. If there isn't any change something could be 'wrong' with your water ie. high in phosphates.
One thing to keep in mind concerning the algae is that a) 11 hours of total light, even with a split photoperiod, is a lot without live plants. Even then it would be overkill...and b) goldfish = high nitrates in a small tank. The two main causes of algae are too much light and excess nutrients, generally speaking. Cut back on both (try feeding less and possibly doing more frequent water changes for less nitrates) and see what happens. If there isn't any change something could be 'wrong' with your water ie. high in phosphates.