Need some advice in keeping fish in a tub pond. I set up a tub pond in my deck two weeks ago and included some anacharis , frog bits and Ludwigia that I collected from Lake Elkhorn. Furthermore, I also got a arrowhead plant, and planted it in some Scotts garden soil, placed it in a pot and placed it in the tub (Around a 30 gallon planter) Last Saturday I added 2 long finned white clouds and 2 more on Monday. I noticed that they have perished and I can’t figure out why. I noticed that the anacharis is also not healthy. Is this because of the direct sunlight? Could it be that the garden soil is leaching some chemicals that are harmful to the fish? I added a cap of pea gravel to the pot. . The water has a light green tinge. I think it should be cycled by now, but I can’t explain what is happening. I have raised white clouds easily in regular 20 gallon tubs in the patio, with no direct sun light and they did fine. Should I remove the arrowhead? Any advice is much appreciated