4ft t5 fixtures?

[Chrispowell]

Hi all, is there any good 6 bulb 4ft T5 units still on the market??

I'm currently using the ZETLIGHT 46w fixtures but I'm not convinced they are much good unless directly over the plants you are trying to grow...

Any help much appreciated

Chris

 

[ian_m]

https://www.allpondsolutions.co.uk/aquarium/lighting/t5/120cm-four-tubes-thin-system/

https://www.allpondsolutions.co.uk/aquarium/lighting/t5/120cm-four-tubes-black-or-silver/

 

[papa_c]

You can't go wrong with iQuatics, 2/4/6 tube options, great build and good value. I have a 4 tube 39w (39inch) on a tank 55cm deep and I get a par reading of nearly 100 at substrate.

 

[Chrispowell]

Thanks, any pictures of the fixture?

Not sure if it looks very nice to looker from the site images?

 

[ian_m]

I have the 4 tube iQuatics 92cm version on my Vision 180.

 

[Chrispowell]

All the 6 tube versions are out of stock, shame because the price looks really good!

 

[Chrispowell]

Anyone using these?

http://m.ebay.co.uk/itm/Aquarium-Pr...9125826ffb982d3%7Ciid%3A10&varId=561025294970

 

[ian_m]

Be careful, often hydroponic lights have their tubes further apart than aquatic ones, thus are too wide to place above tanks. Also often fitted with tubes that whilst will get good plant growth will make aquatic plants look cr*p. Need higher K tubes fitting, say 8000K or even 10000K.

 

[Coys]

I'm currently using the ZETLIGHT 46w fixtures but I'm not convinced they are much good unless directly over the plants you are trying to grow...

Really? Are you absolutely sure that the Zetlights are the problem?

FWIW I have two 46w Zetlight Lancia units in my 4' aquarium, mounted about 2" above the water surface in an enclosed hood, and my plants are all growing like crazy. Are you also dosing EI ferts and injecting CO2?

 

[Chrispowell]

Yep dosing EI and have a good bubble rate, if I rest the lights on the tank rim above my stems I get pearling, if I raise them up and put them in the centre of the tank my rotala grows with small leaves and at a slow rate?

I can get images later if it would help, maybe having them 100mm above the rim is too high

 

[Coys]

I can get images later if it would help, maybe having them 100mm above the rim is too high

That could be it. If they are raised and without a cover to reflect the light then there may be too much light leakage.

 

[Chrispowell]

Here's how I normally have my lights, back one on the tank rim and front one raised