damn algae anyway....

[wakka]

well, we had a heat wave last week, while I was gone, it got hot and I got algae on some new clones. tried hydrogen peroxide, no luck.

now I have been told that algae does not like cold. and last night it was thirty one degrees, just like the night before. we left the heater off in the bedroom, and it was damn cold. water was real cold too, yet it still has algae.

we're going to turn the lights of and go for an eighteen and six for a few days. dark and cold, see what happens.

is there anything else that can be done?

at all?

[Fing_57]

it doesn't like darkness

had it go 90% away after the plants filled in and blocked the light below
I only had it on the very top of the grow medium

[Elephunt man]

Look into Botanicare Hydrogaurd:

(copy and paste)
HYDROGUARD™
Bio-fungicide Water Treatment Solution

HYDROGUARD™ is a bio-fungicide water treatment that helps suppress and resist damping off diseases. HYDROGUARD ™ is an all-natural biological stimulant that assists in the management of disease cycles. Unlike the use of fungicides alone, the use of HYDROGUARD ™ breaks the chronic disease cycle while leaving no toxic residues. HYDROGUARD ™ is also useful throughout a plants life in hydrogardens such as NFT or Aeroponics. HYDROGUARD ™ is a phenomenal product which will strengthen your clones ’roots and offer your new plants the best chance of survival when transplanted. The product composition consists of: Bacillus subtilis, Paenibacillus polymxa, Bacillus circulans, and Bacillus amyloliquefaciens. The guaranteed analysis is:CFU/Gram 1.7E x10 6 . A free sample of HYDROGUARD ™ is now available in American Agritech’s Clone and Aero Machines.

I've read about another product SM-90 made by Nutralife, from what I understand, hydrogaurd will not affect beneficial microbes, and SM-90 will kill everything.

Any light leaks to res?

[Elephunt man]

Wouldn't let me edit last post, but here is some info I found on SM-90
(nother copy and paste)
SM-90 by Nutrilife
* Derived from natural plant extracts
* Non toxic and environmentally safe
* For plant disease control

SM-90 1L $17.95
SM-90 4L $59.95

For Treatment of Root

SM-90 is a root disease inhibitor which controls common anaerobic fungal and bacterial pathogens. Effective treatment for root disease from ascomycetes pathogens including fusarium, pythium, rhizoctonia, phytopthera, sclerotinia, etc. When added in small quantities directly to plant nutrient solutions, root disease infestations are inhibited and new root growth emerges. Treated plants develop greater root area and root runs and exhibit a generally healthier root development.

Application rate: Apply 2-3 ml to each gallon of nutrient solution on a weekly basis or whenever solutions are replaced. Routine use will provide preventative treatment to keep problems from developing during all stages of growth.

For treatment of tissue fungus (stem and leaf)

When applied directly to foliage or stem, SM-90 is an effective agent to treat for many moulds, mildew and leaf spot, etc. Effective treatment for botrytis, blight, fusarium, leaf mold, rhizoctonia stem rot, sclerotinia stem rot and others. SM-90 is prepared from natural plant oils and is completely non toxic to humans, animals or of course plants. It is totally biodegradable and environmentally friendly.

Application rate: Dilute 1 part SM-90 with 5 parts water to prepare a concentrate spray. Apply directly to affected areas of plant leaves, stems. Treatments may be repeated twice weekly until infestation is eliminated.

For treatment of insect infestation

When applied directly to foliage or grow mediums SM-90 is an effective agent to discourage and eliminate many common pests including aphids, thrips, spider mite, and whitefly, etc. It is believed to act as a systemic to inhibit insect colonization and to deter re-infestation.

Application rate: Dilute 1 part SM-90 with 5 parts water to prepare a concentrate spray. Apply directly to affected areas of plant leaves, stems, or roots. Treatments may be repeated twice weekly until infestation is eliminated. It is recommended that after 3 consecutive applications of the concentrate, to rinse the leaves with water to remove any old product build up and then repeat normal applications as usual.



Additional Benefits

Controlled lab and greenhouse tests revealed an unexpected benefit that was observed with the treated subjects. Results indicate that SM-90 dramatically increases the transpiration rate which improves the plants water and nutrient uptake capability. The plants treated consistently used 30% more water and nutrients than the control plants. This would result in an increased metabolism and accelerated growth rate.

Cautions

SM-90 is a great solution additive to discourage pests and fungal disease and other bacterial pathogens. It is however for this reason that it is not particularly advantageous in organic soils or solutions because it can inhibit beneficial bacterial colonization. If you are trying to promote bacteria growth this is probably not a desirable additive.

It can accumulate when sprayed repeatedly, heavy applications on leaves because it is a plant oil base, but it is easily removed with water.


I noticed from your description, that it sounds like surface algae. Perhaps you could cut some plastic to fit around your clones to block light. Much like those christmas tree skirts.

Hope this helps, good luck!

[wakka]

we held up the res to our h p s light when it got taped off, no leaks we could see. have grown in it a couple of times now. we got algae during the summer when we had the black out, but have used it since then....

think eighteen six should do it then? plants are good sized, just got no roots outside the rock wool.

[Elephunt man]

I don't think a different light cycle will help much. I wish I knew what your setup looked like, but
How about some foam disposable plates, sliced to the center, and placed around the clones? Kind of like a skirt, if that makes sense. Black or any opaque plastic would work too, anything to block light to the 'surface algae' should kill them off fast.
I'm not exactly sure surface algae should even be a concern.
My humidity is usually ridiculously low, and seems to help. How's your RH?

[CB]

say wakka,

dont remember what you tried last time when this happened soz :o

have ya tried silca blast ?

I use it in my outdoor bubblers and had great luck with it up to 105 degree temps no prob.. no algae or stress.

plant drinks about 7 gallons a day tho at that temp lol

good luck bro hope ya over come this and get ya meds like :D

grow on

[The Hooded Claw]

Liquid Oxygen is another option.

[Fing_57]

AlgaeFixTM $4.68
is an EPA-registered clarifier that effectively controls many types of algae in freshwater aquariums. It clears up "green water" algal blooms, blue-green algae and most types of string algae. Can be used safely in freshwater tanks containing live plants and fish. Do not use AlgaeFixTM with crustaceans, including crabs, freshwater shrimp and freshwater lobsters. One 4-oz bottle treats approximately 1,200 gallons.
http://www.homegrownbud.com/forums/attachment.php?attachmentid=8440&stc=1&d=1168466792


Accu-Clear™ $11.59
causes dirt particles, debris and bacterial blooms to clump together and settle to the bottom to be either vacuumed up or picked up by the filter. Safe for use with all fish and plants. 16 ounces treats 4,800 gallons.
http://www.homegrownbud.com/forums/attachment.php?attachmentid=8441&stc=1&d=1168466792

says safe with plants but ........ I'd make sure safe with hydro vegi garden First