algae growth

My friend has a severe algae problem. after 2 days from cleaning resevoir, algae is coming back big time. it's killing his plants. ph is correct and temperture is fine. he uses city water, which is clorinated. what measure doe he need to do to stop and prevent the algae. any help would be appreciated. S.A.

Space Angel said:

My friend has a severe algae problem. after 2 days from cleaning resevoir, algae is coming back big time. it's killing his plants. ph is correct and temperture is fine. he uses city water, which is clorinated. what measure doe he need to do to stop and prevent the algae. any help would be appreciated. S.A.

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All you have to do to get Algae, is add LIGHT and WATER.

You can not grow HYDRO without the WATEr, so prevent the LIGHT from getting in the water.
And use some peroxide in the water. 1 teaspoon of 3% per gallon of water.

is he using organic nutrients? is the resevoir sealed from light? does he use any h202 in the mix?

codwalop said:

is he using organic nutrients? is the resevoir sealed from light? does he use any h202 in the mix?

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no on organic nutes and no on h202. res. is blacked out, so no light in the tank.

Roseman said:

All you have to do to get Algae, is add LIGHT and WATER.

You can not grow HYDRO without the WATEr, so prevent the LIGHT from getting in the water.
And use some peroxide in the water. 1 teaspoon of 3% per gallon of water.

Click to expand...

Thanks roseman!

"blacked out" res' can often not block all light. Put ur "blacked out" plastic up to ur hps light...see a hint of blue or whatever color you painted over? Apart from the light you will definitely need h2o2 since the nutes are chemical. Get hygrozyme if your using organic nutes like flora nova. More than likely if you didnt see this coming your plants are already dead...i mean your friends plants? hahahaha. Sorry, but at least your equipped for next time. Whoever said teaspoon/gal of 3% is messed in the head. U can use the 35% at that rate, so I am sure the 3% will require more to kill off algae.