Hi Fellas,

This is my grow journal. It is my first attempt at hydroponics. I am only growing 6 plants to start with, as I learn the ropes.

All comments, tips, advice welcome.

My equipment is as follows:

2m x 2m x 2m Ezi-Grow Tent (Mylar lined)
3 x 600W HPS lights in cool tubes
1 x 4 foot carbon filter
1 x large exhaust fan connected to carbon filter
1 x intake fan bringing in cool air to the tent from outside
1 x intake fan bringing in cool air to the cool tube lights and extracting the hot air out the other end
1 x 80 litre reservoir
6 x pots including top and bottom pots

Method is recirculated drip system, the bottom pots are all plumbed back into the reservoir.

Growing medium is straight Hydroton.

Growing from seed. Strain is Super Skunk, seeds from buydutchseeds.com

My problems so far have been heat related. I started off without the cool tube lights and found out quickly that the room temp shot up to 40c. So I swapped my normal reflectors for cool tubes and can now keep the tent at 26-27c.

Im using nutes called "THC" and they are in Part A, Part B form. I intend to use these through vegative and flowering and might also gets some additional flowering nutes. Im starting off at 300PPM although at the moment the res has risen to 500PPM so I need to give it a flush out, the current water in there is about a week old.

Im using root repair formula called AU60 Root Repair, at 1ml per litre.

My seeds were germinated in 2 inch rock wool cubes, and then the cubes were put into the pots in the Hydrotron.

At the moment they are 1 and 1/2 weeks old.

Here are some pics to kick things off. I will put up some better pics of my setup as I get a chance. One of my plants is starting to get yellow leaf tips and im not sure why yet. The other 5 all look healthy.

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Light cycle at the moment is 18/6.

I plan on veging for 8 weeks then flowering for 8 weeks.

Hoping for at least 1 oz per plant (dry).

Some more pics of my setup

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Just noticed some brown algae in my res (see pic).

From what i've read, brown algae is dead algae, it isn't growing any more. Do I still need to flush? Whats best, h202? What is that anyway?

Clean setup son I dunno much about hydro but they look pretty healthy what I do noe is algae grow wen light is allowed into tha res. Imo flush to get tha shiet outta there

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Thanks mate im going to flush it tomorrow.

Bitch of a job, I wish I thought of how I was going to flush it before I put the system together. I need a tap on the res or something. Im using the pump at the moment to pump it all out into a bucket, then lift the pots so gravity sends all there res water back into the main res, then keep pumping and emptying buckets!

Can no light at all get into the res?

If you have a look at my pics you will see I drilled two holes in the res lid, one for my feed line and one for my air line.

The air one is a fair bit bigger than i needed so there is a little bit of light able to get through there.

Also is opening the lid every day to check Ph etc enough light to cause algae probs?

Thanks for the tips. Keep em comin.

looking good....
sorry cant help soil grow here

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Flushed the res today.

Filled it back up with 65 litres of water, then Ph'd it to 5.9

My nutes say full strength is 3.5ml per litre, so I put in roughly 1/4 strenth, ie 1ml per litre.

PPM is now 300 and Ph is 5.8

Will see if my plant with yellow tips improves now.

A few hours after flushing my res and pots out thoroughly with fresh water, my res has got a brown film on the bottom again. Its only very light but its only been a few hours since I flushed it.

I suspect that its not algae, that its just dust from my Hydroton, even though I washed it 3 times thoroughly before i used it.

Can any Hyrdroton growers confirm?

Pics attached

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