• You are viewing the forum as a Guest, please login (you can use your Facebook, Twitter, Google or Microsoft account to login) or register using this link: Log in or Sign Up

Plant deficiency Id

Do you think that There's a possibility of to much flow ??
As I've added an extra so called 800lph power via another spray bar could that be to much flow forcing co2 to the surface to quickly ??



Sent from my iPhone using Tapatalk - now Free
 
Well, take the pH measurements again and that will answer the question. If the profile remains the same as before then the answer is "No." If the measured values are higher then the answer is "Possibly". But you also have to think about whether the distribution of your additional flow has detracted or not. How is the second bar mounted? Does it cause interference with the other bar? These are more difficult questions.

Also, do not make snap judgements on cause and effect. Just because you did something yesterday and you see an anomaly today, it does not automatically mean that today's anomaly was a result of yesterdays activity. What's happening today could have been caused by something that you did or did NOT do 2 weeks ago.

Also, consider that you have more plants (plant mass) now than you did 2 weeks ago. More plants require more CO2. So it could simply be that the tank is a victim of it's own success and requires an injection rate increase more than what you imagined.

Cheers,
 
That's wise words 🙂

The power head spray bar is situation below and the direction of that doesn't match up with the main filter bar ,
Could this cause an issue ? The main bar points more of an angle down that's all , do you think that I should stick with the extra flow for now ?? All I have in my external filter (rated at 1400 LPH) Is one sponge , some Alfa grog and 3 scrubbies and some Purigen , I would say its about 20% full of its full capacity .
I can't take proper readings of ph untill Saturday due to work commitments .
I am still seeing a lot of pearling though
Cheers


Sent from my iPhone using Tapatalk - now Free
 
Hi Sam,
Always, flow outputs from disparate sources should be aligned as much as possible, which then causes their combined effect to be additive. When flow streams cross, the result is almost always destructive interference. So the jets emanating on the two different "planes" should be parallel. If the line defining their angles intersect, then destructive interference occurs at the point of intersection.

Why not just rotate the bars so that they both point at the horizontal?

Cheers,
 
I took the power head + spray bar out this morning as a few of those holes didn't shoot in the same direction as the rest ( obviously my drilling standards aren't on par ).
But I was able to take a ph reading just before co2 on - 6.5 (co2 on 13.00)

I have only just been able to take a reading now
(17.00) and it gave me 5.7 . So that's a drop of .8 but it's .2 more then what I have previously had.
25% (9watts) of light comes on @ 16.00
The LEDs are rated at 110lm that's all the info I have on them sorry . But they are not driven at their full power .
Then @ 17.00 75% ( 28 watts) comes on
All leds are 1 watt .
I have no idea if the GSA is because of to much light but I have reduced the intensity since noticing etc
Would spraying a dose of po4 directly over the plants have any impact ?
Maybe I should increase the po4 again ?
It has gotten worse today but I'm not going to loose sleep over it , also the new growth looks fine .
Cheers


Sent from my iPhone using Tapatalk - now Free
 
Yeah, I don't really have any idea bout the PAR levels of LED vs their wattage or lumen value. I haven't seen any charts, so every unit has to be measured. I do think you should keep them at low values, like below 40% until you see some improvement.

I don't think there is any value in pouring PO4 over the plants, as this seems to be CO2 and light. When you reduce the light you will lower the demand for both CO2 and PO4.

Cheers,
 
Cheers for your time mate. , I've reduced the photoperiod as well as the intensity ,
Just see how it goes over the next week or two .
Obviously I was wasn't expecting the high amount of co2 uptake .
It's all about learning .
Cheers



Sent from my iPhone using Tapatalk - now Free
 
Well here is some info from hoppy from when I was discussing LEDs before my build. ,
Although I have used a different make and this is based on Crees , Crees are thought to perform better then bridgelux , anyhow my LEDs should run at 350ma @ 110 lumen ( I run them @ 300mA) so I estimate that mine are just over half the amount stated in his data sheet which could give me at least 50 par ( Probably more )

'''Cree's data sheets on the XR-E Q5 cool white and Royal Blue LEDs show 235 lumens at 1000 MAmps, which is the maximum current they should be driven at. At 700 MAmps, they show 182 lumens, and that is probably the highest current you should use if you want full life out of the LEDs. Using those lumen outputs, with the LEDs spaced 50 mm apart, two rows, and with 60 degree optics, my calculator says you would get around 90 micromols of PAR at a distance of 500 mm. That should work very well, so you could use the dimmer to adjust the PAR down as low as 35 micromols.

I don't have enough data on the Bridgelux LEDs to guess how well it would work with them.
..... ' '


This is based on 20 day white and 10 royal blue.

So at least this gives me sort of an idea how much light I have.
He also states warm white give more par then day white And day white more par then cold white (10k which I have) and so on.

This Is also from hoppy
'
PAR Values(Source) - Thanks Gnomecatcher for the suggestion!
Values between 10-30 are considered low light.
Values between 30-80 are considered medium light.
Values between 80-120 are considered high light.
Keep in mind that these values are what is currently accepted by the community as accurate, and aren't set in stone.

I guess I'm currently in the medium light but could be the higher end of medium light .
I have also raised the light now to 600 mm from sediment which could also Lower that par .

Cheers



Sent from my iPhone using Tapatalk - now Free
 
Update on the old algae problem .

I'm now getting .9 If not a full drop on the ph so that is showing me that I am currently getting . 4 increase of a ph drop - this is an improvement .

I completely hacked the staurogyne bk to nothing as it was all covered in the GSA which did rub off the plant anyways but it will grow back (hopefully)
Flow looks good but I now have got a slight film on the surface - I slightly raised the height of the spray bar to create more movement .
Light is now moved up to 600mm from the substrate and the plants are still pearling :/ .
Hopefully In a couple weeks it may clear up . I'm moving house in 9 days - this is a perfect time to give everything a good clean (again)
Cheers


Sent from my mobile telecommunications device
 
Yeah, when you have GSA the only way to tell if the condition is resolved is by observing the new leaves. If they come in clean and stay clean then you're OK.

The film is another indication of a CO2 anomaly.

Cheers,
 
The ship is on steady as she goes for the meantime to see if things improve, the fauna have not once looked as if they have struggled with the injection rate so there is room for an increase .will make more changes once I have moved in 9days 🙂
One of our previous conversations was about degassing etc , as I have a lid we thought that there wasn't much of a degas overnight, my ph at the minute is 6.3 in the morning (this was 6) with the lid in place.
I ran a test without the lid and My ph was 6.7 at its highest point and that dropped to 5.7 with co2.
I prefer to have the lid , would this lack of degassing cause me any problems ? livestock don't seem bothered .
Cheers
 
No, I really don't think so. People run canopied tanks all the time without any issues. That's not something to worry about at all. The gas retention is all important and that's why I always suggest when people are having difficulties with open type tanks to put a lid on, just to help a little.

Cheers,
 
Brilliant cheers , will update In a few weeks


Sent from my mobile telecommunications device
 
Yo ceg you still think this is gsa ??
I have had a massive outbreak of the stuff !
Its Over all the plants now, Could it be diamtoms ??

If so can excess po4 lead to that ??

SKj1kIq.jpg

Cheers
 
Try a soft blackout for a few days. Just turn the lights off an see how it goes. High probability that you have more light than you think, and less CO2 than you think. It's a never ending soap opera mate.

Sorry, I never promised you a rose garden.....

Cheers,
 
If everything was easy then no one would learn mate 🙂

At some point everyone in the hobby goes through it , it's how you handle it that counts 🙂

I can raise the light even more so will do a few more adjustments and keep you posted
Cheers



Sent from my mobile telecommunications device
 
I've since taken out the 800lph power and dropped the Ei dosing bk in accordance to the actual tank + filter volume (100liters) as apposed to the actual tank empty volume (125 litres ) + double dose of Po4, I have lost all visible surface scum and have no algae increase , co2 also tuned right down as I have introduced a shoal of ottos which were initially gassed causing an almost fatal wipeout , back to 2 bps from 5bps :/
Lighting hasn't been raised and my photoperiod is
25 % @ 6 hrs
75% @ 2 hrs - this was 3 hrs

I have got lots of new health growth 🙂



Sent from my mobile telecommunications device
 
You must log in or register to reply here.
Back
Top