Tank is a 80 gallon (65/15) RedSea 300XL. The pumps are Neptune WAV pumps, 2 of them. They work, the Apex controller does a nice job varying the flow ... But they're set to 1%.
1 percent is the smallest setting you can use. And when I feed the clowns & turn off one pump, the frozen mysis shrimp make circles in the tank pretty quickly (works well for the clowns, they don't have to do anything but sit there and food comes to them). Maybe I don't understand the pump configuration well, but it seems like 2 of these is overkill for this size tank - am I wrong?
RPM on the impeller is 1875 & 1882 (range is 1800-4200)
Internal temp is 42% (normal is 40-50%)
FLO is 5.2 overall (3.6 on one side, 3.8 on the other). Apex says "FLO is a general measurement of water movement that is derived from pump performance and the volume of water in the aquarium" and the scale is 0-10.
A couple corals are not happy, and I'm wondering if our flow overall is just too high. A Paly and a Clove are very sad, the clove is shrinking and the Paly is closed up. These are 2 of the first 4 corals in the tank ... and water parameters are both "good" and "fine", so flow is the next culprit. Or light, but we tried moving the clove lower in the tank and it looks WORSE so I don't think we're over-lighting them. A mushroom coral is happy and so is a second coral that I think is a leather. If it IS flow, I don't have a lot of room to move on the settings, but I could direct them toward the back wall and hope that disperses the flow a little better.
Actual water parameters below:
pH - varies 7.83 to 8.08, average is 7.92 (could be higher).
ORP has been climbing from 188 to 221
Salt is 32 - 32.77 (little low)
Ammonia is 0
Nitrate has been falling, from 25 to 5
Alkalinity is 7
1 percent is the smallest setting you can use. And when I feed the clowns & turn off one pump, the frozen mysis shrimp make circles in the tank pretty quickly (works well for the clowns, they don't have to do anything but sit there and food comes to them). Maybe I don't understand the pump configuration well, but it seems like 2 of these is overkill for this size tank - am I wrong?
RPM on the impeller is 1875 & 1882 (range is 1800-4200)
Internal temp is 42% (normal is 40-50%)
FLO is 5.2 overall (3.6 on one side, 3.8 on the other). Apex says "FLO is a general measurement of water movement that is derived from pump performance and the volume of water in the aquarium" and the scale is 0-10.
A couple corals are not happy, and I'm wondering if our flow overall is just too high. A Paly and a Clove are very sad, the clove is shrinking and the Paly is closed up. These are 2 of the first 4 corals in the tank ... and water parameters are both "good" and "fine", so flow is the next culprit. Or light, but we tried moving the clove lower in the tank and it looks WORSE so I don't think we're over-lighting them. A mushroom coral is happy and so is a second coral that I think is a leather. If it IS flow, I don't have a lot of room to move on the settings, but I could direct them toward the back wall and hope that disperses the flow a little better.
Actual water parameters below:
pH - varies 7.83 to 8.08, average is 7.92 (could be higher).
ORP has been climbing from 188 to 221
Salt is 32 - 32.77 (little low)
Ammonia is 0
Nitrate has been falling, from 25 to 5
Alkalinity is 7