Comparision Of T8s And T5s

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shrimply

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Hi guys, I'm about to start a low maintenance ( at present ) planted tank. Truth be told, it will hopefully turn into a high maintenance project but my dad's putting the money in and I'm on a budget of about £100. So for now plan is.

60 gallon tank its 4ft x 18" x 18"
Layer of top soil mixed with substrate ferts and a layer of fine gravel
Going to be treating with TPN+ and Easy Carbo
Filtration is a fluval 304 and a fluval 4+( which I can hopefully remove if all is well)
Heating Hydor 300 although it will be an internal initially until I get everything moved around.
Initially I'll be planting with a large plant collection from plantsalive.co.uk, and then probably paying for more expensive Tropica plants, this means I get a lot of plants, and fast growing ones in initially and work out what will do well and what won't.

My plan will be eventually to get pressurised CO2 into it and further upgrade the lighting.

But apart from a general, I'm on the right path, even though is a rocky one would be great from you guys.

I'd like to ask about lighting.At the minute it has one 30W T8 in there. General plan was to order a double T8 40W starter unit, and fit 3 regular household 30W 6500K tubes. I know that these will be slightly overpowered but from experience that won't be a problem. In the future it means two of the bulbs can be upgraded to proper aquatic 40W ones, for slightly more light and better colours. You understand the initial setup price is to be kept low but with the potential to upgrade easily over time. So about 90W over 60 gallons.

The hood is a good shape, if it ever came to the point where I need to further double the lighting, there's the capacity.

But the only other affordable option is a double 39W T5 starter, now this is a bit more pricey, and on the surface apart from the smaller size (which is unimportant) is a worse deal than the T8s. What I'd like to know is if 30W from a T8 = 30W from a T5, or if there is a great deal more benefit going for the T5s.

And in general do you think I'm going for the right amount of light given the rest of my set-up?

Thanks, Darren
 
hi,
i the watts per gallon rule is obviously an rough guide.

i think either option would be fine but if you are planing to go more high tech in the future then i would personally go for the t5 now.
altho running this and the fitted t8 would possibly put you on/over the limit of requiring co2.

not sure of the actual improvement but t5 are better not just smaller!

check this link for good tube prices!
http://www.lampspecs.co.uk/
 
Thanks, considering dumping the original fitting and replacing with 2x54W t5s. Would be neater and if I DIY it slightly cheaper. Going to see what they say in the DIY section, but I can't see it being a big problem.
 
Thanks, considering dumping the original fitting and replacing with 2x54W t5s. Would be neater and if I DIY it slightly cheaper. Going to see what they say in the DIY section, but I can't see it being a big problem.

cool, that is a decent amount of light. it is outta the range of "low" lighting tho so could potentially give you problems at start up if no co2 added tho!
 
Thanks, I think it should be OK, I am going to be dosing with easycarbo, which although no real substitute for Pressurised CO2 should help, and it'll still be under 2 wpg.

Can you tell I just make it up as I go along, and I wouldn't do it any other way :lol:

Still no reply in the DIY section, but I see no real issues should just all clip together like lego :nod: .

Anyway all comments are welcome. Thoughts, advice, criticisms and just general mocking will all be accepted gratefully.
 
Just had another thought. I seem to remember that wpg is based on light tubes fitted with reflectors. I this the case?

I wasn't going to bother with reflectors but maybe that is not wise.

So I think I'm kind of trying to achieve medium lighting conditions for plants. Will 2 X 54W tubes over a 48x18x18" with or without reflectors achieve this.
 
Just had another thought. I seem to remember that wpg is based on light tubes fitted with reflectors. I this the case?

I wasn't going to bother with reflectors but maybe that is not wise.

So I think I'm kind of trying to achieve medium lighting conditions for plants. Will 2 X 54W tubes over a 48x18x18" with or without reflectors achieve this.

yes the WPG "rule" based on t8 with reflectors.

it is a pretty big difference between with and with out reflectors i believe.


aaron said this in his "back to basics" thread, "I would recommend sticking with 1WPG T5 or 1.5WPG T8 for a low tech tank"
so you are well into the "medium" light range, i'd get that co2 set up from the outset!! ;0)
 
Ok, this is all very confusing,lol. Guess you just have to read plenty of other people journals, judge what you think is right for yourself, see how the plants grown, and most importantly just go with the flow.

Anyhow, I ordered the easycarbo last night, so I'll give it a go over the next couple of months and see how things go. I'd happily buy the co2 system myself, but am completely broke right now. Hopefully will have a job in a month or so when I go back to uni, so well see how its all going then. Funnily enough my dad's main objection to CO2 seems to be the idea of the fire extinguisher sitting beside the tank, rather than the cost but I'll cross that hurdle later.

Thanks for the help, and advice, even if I ain't following it to the letter I am listening and taking everything on board honest.

You'll probably have some more questions over the next couple of days,weeks, months. So long as you don't mind.
 
Ok, this is all very confusing,lol.

you' re not wrong! :0)
the "t" value on the tubes is only in reference to their diameter in 1/8 inch
so t12 is 1.5 inches, t8 is one inch, t5 is obviously 5/8 of an inch!

t12's are pretty old and i dont think ppl really use them any longer!
t8s get more punch to the watt and t5 more so again!
 
Thanks, I think it should be OK, I am going to be dosing with easycarbo, which although no real substitute for Pressurised CO2 should help, and it'll still be under 2 wpg.

My guess is that you will struggle without CO2 at these light levels. I use 2 x T8 on a similar sized tank and need pressurised CO2. Personally, I don`t pay the WPG any heed any more. As a general guide, 2 x T8 the lenght of the tank is enough light for any situation. At 60USG, I think you are going to need pressurised CO2.

Take a look at 3 x T8 luminaires that are switchable, giving you the option of running a third lamp if needed.

Dave.
 
Thanks Dave, I'm cursing myself now, but I have my heart set on the T5s, they will give a much better spread of light and look so much neater than anything else.

Still no reply in the DIY section, so I'm kind of guessing here, but I presume some way or another depending on the wiring for the two T5s to the ballast I could fit a switch and have only one on. However, I'm guessing that may not be enough light, so much confusion.

It looks like I may have to do some sums and see what's possible, been investigating, and looks like I could get the CO2 set-up for about £105, which sounds like so little but is out of my reach right now. Maybe come to some sort of agreement with father.

In the meantime I'll go and look at how much overdraft I have left on my student account :crazy:
 
Thanks Dave, I'm cursing myself now, but I have my heart set on the T5s, they will give a much better spread of light and look so much neater than anything else.

Still no reply in the DIY section, so I'm kind of guessing here, but I presume some way or another depending on the wiring for the two T5s to the ballast I could fit a switch and have only one on. However, I'm guessing that may not be enough light, so much confusion.

It looks like I may have to do some sums and see what's possible, been investigating, and looks like I could get the CO2 set-up for about £105, which sounds like so little but is out of my reach right now. Maybe come to some sort of agreement with father.

In the meantime I'll go and look at how much overdraft I have left on my student account :crazy:

:0) its easy to get carried away dude!
yesterday it was a low maintenance set up!! :shout:
 
I'm prone to get carried away but I have wanted a high tech tank for sooooooooooo long.

Just been reading George Farmers experience of easycarbo of the practical fish keeping site.

http://www.practicalfishkeeping.co.uk/pfk/....php?blogid=234

So for just now I'm going to stick to my guns, I'll fit the T5s minus reflectors and dose with easycarbo. If there's not enough light I can fit one or both tubes with reflectors. The easycarbo that I've already paid for should last between 3 and 4 months.

After that time I'll see what situation we're in, if I have the cash before then I might fit pressurised Co2 anyway.

Ach if it all goes wrong, I get to start all over again :rolleyes:

:good:
 

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