Backyard Aquaponics
A place to discuss aquaponics

I have another problem on my Hybird raft, the lettuce doesn't grow well in the Hybird raft after 3 weeks

The raft is put at between Media bed and fish tank so that the Media bed does filtration for the raft

Please help me to improve the system

Thank a lot!

sorry for bring up a lot of troubles

Regards
Tinh

How much light is it getting?

Looks leggy to me (not enough light), and yellow, from either not enough light, or something is deficient.

looks like you are just placing the plant in the hole with nothing but its leaves to hold them up??

Being in vietnam and lettuce being a cold weather plant generally, are you sure you have a type that will withstand your temps?

Dear Yavimaya,

i used cotton to hold the plant

the lecttuce is growing well here from Soil

Thanks

Tinh

Looks like they are pretty light in color like maybe there isn't enough nitrogen after passing through the tomato bed maybe. Can you give us a close up pic?

Here you are Scotty435

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From the bright patch TOP LH Corner..
it is likely that there is just not enough sunlight..

and... Is it my imagination.. are those METAL pipes..
( Not an issue for the plants, but possibly for AquaCulture, if it's other than Stainless tubing..

Again +1 for poor light..
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Hi Buidoi,

It's cooper. Is it OK?

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A BIG NO to copper, if there are fish present..
So do you have fish, and what species..
..
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Hi Buidoi,

It's Tapila. Is it OK what is problem with copper fitting, i see it's used for running water tank here, no problem for human so should be no problem for the fish

If the water runs through the copper once, like in a house, it's not a problem.

The problem comes from when the water is continually passing through the copper, the toxic levels build up over time, and you'll come out to dead fish.

Do you have enough land to get proper sunlight to the beds? That's all it'd take, and make sure if you've got shade cloth up, it's not blocking too much sunlight, have a look at Cookie's thread, he'd had a very strong shade cloth up, and was having leggy issues, he removed it, and it was fine.

Hey Tinh,

Where about's are you in VN?

Bob

@BuiDoi - Wow, good eye. Did not notice the copper fitting.

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I am just a tiny bit sensitive to the subject ATM..
Fish die when they enter my system and I have no idea why.. Thought I was convinced of the cause, but not now..
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@Buidoi,

i have changed the fitting to plastic

@Bob H,

I'm leaving in Vung Tau City in Viet Nam