small plants, need advanced input

Hey guys I'm new to hydro. I've always done soil, last month I germinated a dozen or so seeds, on Feb 15th, put into cubes on the 20th. Seedlings sprouted on 25th. Or so.

But my plants are much smaller than usual. Some seem to be nitrogen deficient also, I just began using nutrients on them.

My pH is 5.6-5.9. My temps are 68-72 in water. Air is 75-80. Ppm was 150, now 550.

Will the leaves go back to green? What else can I do? What am I doing wrong?

I've never had this problem in soil.

One of them looks good, two decent, but the rest are lacking.

I used super thrive at 1 drop gallon and GH flora series.

Here's some pics.

ur ph when using soil was the same? I never grown on hydro but my friend does he keeps PH at 6.8 - 6.9.

No, soil pH is higher, it acts as a buffer. Soil is 6.4-6.6. I think 6.5-7 is too high, roots prefer a slightly acidic enviorment some more than others but Everybody has slightly different numbers, see the chart for which nutrients are available at which pH levels...

Anybody else?

Your friend should lower his pH levels.

Soil 6.3 to 6.7
Hydro 5.6 to 5.9

some keep them a little higher than those, but they do go up in time naturally anyways, so when you adjust it, I aim for the lower end.

Not that 6.5-7.0 is wrong, just neutral. Should be more like 6.0-6.5 IMO


Can anybody HELP me..? Please!

geegee1432 said:

No, soil pH is higher, it acts as a buffer. Soil is 6.4-6.6. I think 6.5-7 is too high, roots prefer a slightly acidic enviorment some more than others but Everybody has slightly different numbers, see the chart for which nutrients are available at which pH levels...

Anybody else?

Click to expand...

See I just learned something and I have to pass it on to my friend =) thanks!


-Jugz

Yw...