HELP! New koi pond!
My husband and I just built a backyard koi pond. Its approx 300 gallons, complete with a pump/waterfall and a new filter. After building, we let it sit with the pump running for about 6 weeks. It became very green and filled with algae about a week in. Last week we installed a filter and treated the water with aquasafe to clear the chlorine and a water clarifier. The pH is about 8.We decided we would add fish, so we bought 2 koi, 4 feeder fish and 3 pleccos (algae eaters!). Well, since putting the fish in, we haven't seen them again. They haven't appeared to eat and we haven't seen a bit of movement. The water is still very dark and green but I feel like we would have seen SOMETHING. On day 2, one of the pleccos had died. I haven't found anymore "floaters" but have yet to see any fish alive either! The pond has very little shade. We made a couple hiding spots, but I'm wondering if the fish have been found by predators? If they died in the water, wouldn't they have floated up? Is it possible they are alive and well, but we just can't see them? They haven't come up for pellets, how long can they go without eating them? Besides adding shade, plants, and a filter- how else can we remedy the dark water? Is the water darkness bad for the fish? We added the fish 3 days ago- how do I know if they are still in there?
So many questions! HELP!