algae on the waterfall rocks

[D&RW]

does everybody have a coating of dark green algae on their waterfall rocks? I've treated the pond X 3 with Pond Balance and have no string algae. I have a 57 watt UV light so the water is very clear. Sides and bottom of the pond are greenish, but that's fine.

But the waterfall rocks are totally covered with dark green algae. Did do that before so I'm puzzled.

 

[koikeepr]

yes, I have the same thing. It naturally develops in persistently wet areas and is a good sign that things are in good shape. Just leave it alone and accept what nature has intended. It's all good.

 

[koidaddy]

Not a problem. I like the looks of it. It's a little more natural looking.

 

[stroppy]

i had it last year ...and i did find it slowed down my water flow when it got real; bad i used a scrubbing brush to clear it a bit for a while

 

[koiguy1969]

toilet brushes are great....we all have to deal with it if we have a falls.

 

[D&RW]

Just checking. I don't mind it at all, just wanted to know if I needed to retreat with balance. i haven't stopped the water to see if it's string or not. but since it sounds like a natural phenomenon, I won't concern myself with it.

 

[koikeepr]

when algae like that grows it means good things are happening. Just let it be.

 

[DoDad]

If its string algae it will start hanging from your waterfall.

 

[D&RW]

I checked and some of it is definitely string algae. So I treated the pond again with Balance. Can't hurt.

BTW, the two little shy Koi I was worried about have started coming out and getting food. We named the yellow one Streak because of the way it swims. The black and yellow one doesn't have a name yet.

 

[koikeepr]

all fish need a name--give that bumblee a name soon!