Originally Posted by
JohnDeStef
The water temps are really pi$$ing me off. I believe the 3rd pump I added really heated up the tank. At 7 this morning the tank was still at 83.5 degrees, after only having the main lights on for 7 hrs yesterday; 10am to 5pm.
From the other threads, guys have had problems increasing the stock return pump's flow. It's increased flow so much, that the filter wasn't working correctly and bubbles in the tank increased.
Soooooooooooo I'm going to look into small pumps that are around the same GPH but use less wattage. ( 110GPH @ 5 watts)
Got any ideas for replacement pumps that fit that bill?
I might try two
Rio 180s to replace the stock pumps in the rear, and a
Rio 90 to add circulation in the tank. The 180s are close to stock flow with less watts (120gph - 85gph @ 1ft and 3.4 watts. The 90 (85gph and 2.8 watts) will go in the tank for more flow. I'm hoping the similar to stock 180s will not affect water flow in the rear compartment/skimmer water level height....
So for the same-to-stock watts, I'll get more flow with the Rios.
I have 2 parts tanks to experiment with for better cooling. I've cut slots in an extra reflector, in order to direct airflow to the back and front of the bulbs. The fans will be installed on the outside of the canopy. I'm going to use two
Papst 60x60x15mm fans, 21cfm @ 16dba. I drew on the reflector where the fans will be on the outside of the hood, to get an idea how the incoming air will flow.
The hood is slightly sloped, so I believe the air will guided towards the back of the light compartment by the level reflector. So to vent the air I going to add slots at the front edges of the existing vents. (the pics are of a broken hood that I'm practicing on) That way I'm hoping the air will move from the back of the compartment, flow across the bulbs, and exit at the front corners.
I'm going to cover the stock vents in the area that's above the reflector and below the hood. That will keep the incoming air flowing the way I want. (vs blowing out the upper sides. I will leave the vents uncovered in the rear of the hood to allow the ballast? to cool.
I am also going to tape or paint an inch black strip around the top edge of the glass... to hide the lower water line I'm going with. That splash guard is waaaay to close to the water as-is, and almost acts as an in-the-water heater!
And as far as my mod pics... I'd like to get a better dremel bit, so the final cuts in the *good* hood will look much smoother. :notsure: