Tyrant

filter bacteria will die when shutting down the filter due to lack of oxygen i believe.

Terra Incognita

Let's suppose that's not a problem? In that case, if I shut off the filter for maybe 2-3 days until the roots totally took hold, would it cause any further problems?

Aquaculture

Tetra Incognita, I would not suggest to turn the filter off as your need to circulate the water and the minieral in it.

nicklovgren, yes, hairgrass would populate and reward you with a lush lawn. Plant them sparsely and they would spread in no time... if you have CO2 injection and highlight, you'll see baby blades of hairgrass in a matter of weeks. I'm using the EI method of fert dosing. Works fine with me...

Yeaulman

Whats considered high light? I have about 2.9 wpg.

trenac

I consider 2.9 wpg medium/high light on a standard size tank.

skubasteve!

I wouldn't shut off your filter. You could try putting some sort of sponge around the intake to slightly reduce the flow, and prevent plants from getting sucked up into the impeller/filter area.

Yeaulman

So is that enough light for hair grass?

patrick76

Its been two week from when i planted my dwarf hairgrass and there is no sign of growth. Look exactly the same any ideas?

houseofcards

From my experience it takes a while to get started. Did you cut back the original leaves? I have always found be cutting the original leaves to about 1/2 an inch it started to produce new runners much quicker.

patrick76

Yes i cut them back to about 1/2 inch. Still no sign of anything.