I am not sure what to do with this part of the assembly on my tank - bought the tank used and no manual online. I assume it's to adjust tank water height in the return.
I have exact same dealio on my frag tank. My suggestion would be lower it all the way down and once you have the return pump going and get a feel on where you want your water level to be in the tank adjust accordingly. I have a pump that's a bit too powerful for my fragtank and with that level being raised all the way up it quickly filled my tank all the way to the edge so I had to pull the plug to make sure it wouldn't overflow.
I agree, better to have it too low and let more water into the overflow area as opposed to not enough and burning your pump up bc it doesn't have enough water.
Leave low if you want to have a wave in the tank. I agree with starting with it low and raising it after you get the return dialed in. Pretty cool feature!
Leave low if you want to have a wave in the tank. I agree with starting with it low and raising it after you get the return dialed in. Pretty cool feature!
So I need to figure out how to silence the waterfall but I didn't like how high the water level was so I turned the "weir" upside down who have me more wiggle room with how low to put it. The way I first had it made the water level 1/4" higher but it leaked out into the drain which I didn't like.