restrict the amount of oxygen in the water?
There was a lot of string algae in the pond and some was inhibiting one of the 2 pumps' ability to work. I went into the pond to clean out the pump and found lots of string algae on the intake and in the pond. I removed the excess amounts. The pump is working just fine now and the waterfall is working well. The fish like the increased water movement.
I have not added any chemicals at all since I don't know what's safe.
The pond is about 500 gallons (I think) and there are two pumps running 24/7. I never remember how many gallons are in the pond.
There was a lot of string algae in the pond and some was inhibiting one of the 2 pumps' ability to work. I went into the pond to clean out the pump and found lots of string algae on the intake and in the pond. I removed the excess amounts. The pump is working just fine now and the waterfall is working well. The fish like the increased water movement.
I have not added any chemicals at all since I don't know what's safe.
The pond is about 500 gallons (I think) and there are two pumps running 24/7. I never remember how many gallons are in the pond.