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Fixed the giant sucking sound mainly by turning down the intake water slightly. I also changed the intake line so it pushes the water into the tank below the water line. Also drilled a hole in this line just below the water surface so there should be no siphon. Then added a 90 and it forces water across the tub for better flow. Neither of these fittings are glued in place so I can still adjust it in the future. Oh and yes, the 90 at the top is glued so it cannot come out of the tub. Removed the powerhead and it seems to move the water around fairly well. I am thinking about turning it to the side to create a clockwise current in the tub. Will it work since it is not circular....who knows. Just want to make sure there is current all over the tub.
I have the water level much better overall and tested several times to guaranty no sump overflow issues when the return pump is off. Was evaporating 2-3 gallons of water per day but did not see that yesterday. I am very curious how much the tub's lid will help that. Also picked up a plastic cardboard piece to cut for the sump. It doesn't really need it but like the idea of a lid for the sump.
Well I am a little confused. There are 0 nitrates in the tank now. There was 10 two weeks ago and granted I added another 100 gallons of rock tub I would not have thought they would have gone down that much. I did the test first with a nyos kit and it says 0-1. Then did a salefert kit and got 0. I am still feeding the 9 chromis once or twice a day with the dirtiest food, flakes and sometimes pellets but they seem to like the pellets more. Added 20 hermits and 10 margarita snails. I do see some skimmate in the skimmer but not even 1/4 full yet.
I got a small ball of chaeto from Cody but there is just no way it pulled that much out in 2 days when we are talking about 300 gallons of water....