Rockwool Cubes going green... why?

Hey Everyone,

I'm currently in the process of my 1st indoor grow, with a small 2x4 ebb and flow table. My seedling cubes were placed into 4" grodon/rockwool cubes about a week or so ago and feed with DNF Grow A+B 3 times a day on a 30 minutes cycle.

I've been noticing the cubes are starting to get a little green and was wondering what conditions could be causing it. Any SUGGESTIONS?

My specs can be found on my grow log, but just to summarize:

lighting - 4 x 42w CFL bulbs (2 - daylight, 2 - warm)
Air Circulation - 3 speed pilar fan suspended from ceiling
Water - pH balanced, in black rubbermaid res., with DNF Grow A+B formula

Algee from light .
Crispi :stoned:

Algae isn't bad in and of itself. Just when it dies and rots, then you can have problems.

Quote:

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Originally Posted by steeltownstoner

Hey Everyone,

I'm currently in the process of my 1st indoor grow, with a small 2x4 ebb and flow table. My seedling cubes were placed into 4" grodon/rockwool cubes about a week or so ago and feed with DNF Grow A+B 3 times a day on a 30 minutes cycle.

I've been noticing the cubes are starting to get a little green and was wondering what conditions could be causing it. Any SUGGESTIONS?

My specs can be found on my grow log, but just to summarize:

lighting - 4 x 42w CFL bulbs (2 - daylight, 2 - warm)
Air Circulation - 3 speed pilar fan suspended from ceiling
Water - pH balanced, in black rubbermaid res., with DNF Grow A+B formula

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World's cheapest cube cap: Get some plastic thick enough to block light and cut pieces a couple inches larger than your cubes in each direction. Cut a slit from one side to the center for the trunk to pass through. Cover the top of the cube, fold around the sides, and hold in place with a rubber band around cube and plastic.

Quote:

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Originally Posted by IAmKowalski

World's cheapest cube cap: Get some plastic thick enough to block light and cut pieces a couple inches larger than your cubes in each direction. Cut a slit from one side to the center for the trunk to pass through. Cover the top of the cube, fold around the sides, and hold in place with a rubber band around cube and plastic.

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Agree 100% thats what I did with mine.
Leave a bit of room around the base of the stem.

Also prevents thrip infestation ^^^ and can be used over pots of soil, where thrips breed most aggressively.

I believe algae is harmless and it does not complete for food (nutes).

Although I find ants at a picnic annoying, they do not consume enough of my potato chips that I get concerned that I will go hungry.

But its awfull when they get in your pants dear Lady.
Sorry off topic.:jointsmile:

True. You have a point. Ants at a picnic are worse than algae on your rockwool cubes. :jointsmile: