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Topic Review (Newest First)
02-08-2013 10:19 AM
Django
Quote:
Originally Posted by JeffHerr View Post
Thanks to all for the notes. Here are more details:
No CO2, only 7-9mL Excel daily
I have 2x65w T5 (correction, I have compact fluor) for 10hrs/day

I used a Magnum 250 and a supplemental koralia nano for increased circulation.

NO3 usually runs between 10 and 20.
Iron about .25
Phos is unknown
Ph is roughly 7+
GH and KH both 6, IIRC
Temp is 76

I will say that because I'm not dosing CO2, but am supplementing Excel, I'm not sure what exactly my EI amounts should be.

Someone suggested I should be dosing twice as much KNO3 as I am. Yes? No?

CORRECTION: I listed my lighting as T5, but it's standard compact fluorescent. Is 130w of CF for 55gal still too much?
Another CO2-less fishkeeper here. From what I have gathered, if you have 10-20 ppm nitrates you don't need any more and should stop there. maybe you should think of dosing 1/2, except possibly if you go down to zero.
02-07-2013 05:09 AM
JeffHerr Tom, thanks for the confirmation on the lighting.

I've upped the Excel and will reduce my ferts across the board as you suggest.

Thanks!
02-07-2013 04:32 AM
plantbrain If you go CO2, then we can modify.
If not, use the Excel the way I mentioned.

5mls per 10 gal of tank each day.
Add more plants.
Cut the ferts by 75%.

Do a few more water changes till the tank cleans up, then back off.

Excel is only going to increase growth maybe 200-400%, whereas CO2 gas will increase it 1000-2000%.

The directions are for lightly planted tanks, if you have plenty of plants, you need more. FYI, I've bred fish in tanks dosed that much, and there's 101 people suggesting dosing 2-3x what I'm suggesting to kill algae etc.
I've likely used excel longer than anyone on this forum and at that dose(Check APD if you wish, it was a time before "forums" existed).

Your light plan is good.
02-06-2013 11:38 PM
JeffHerr
Let's play "Guess the missing nutrient"!

I just realized I said I had 130w T5 for 55 gal. My bad...

I have standard compact fluorescents. Is approx 2 watt/gal of CF still too much light? I've cut my photo period back to 8 hours, but feel like 10 hours of full 130 watt CF lighting should be fine for an Excel/EI dosed tank.

Opinions?
01-28-2013 11:58 PM
sowNreap
Quote:
Originally Posted by JeffHerr View Post
When I first wrote this, I was dosing Iron daily. So, I was doing all my dosing at night, then Iron and Excel in the mornings. It put time between Phosphate and Iron, reducing interaction. Then, realizing my Iron was getting a little high, I started skipping iron dosing the morning after CSM (which contains iron).
You are spot-on, but with 12 hours between iron and other nutrients, I think I'm okay.
Ok .. good deal. Yeah the time between your dosing would definitely seem long enough. I now only dose most tanks once a week since they're low light .. one day macros, next day micros and iron. Good to know I'm doing iron the right day. I keep confusing myself when to dose it .. getting to old to remember one week to the next.
01-28-2013 04:11 AM
JeffHerr When I first wrote this, I was dosing Iron daily. So, I was doing all my dosing at night, then Iron and Excel in the mornings. It put time between Phosphate and Iron, reducing interaction. Then, realizing my Iron was getting a little high, I started skipping iron dosing the morning after CSM (which contains iron).
You are spot-on, but with 12 hours between iron and other nutrients, I think I'm okay.
01-28-2013 03:31 AM
sowNreap
Quote:
Originally Posted by JeffHerr View Post
I've got a 55gal Carbon-supplemented tank, fully cycled. New to EI, about 3 weeks. Many new plants added at that time.
Dosing:
1/4 tsp KNO3 x 3
1/8 tsp MKP x 3
1/8 tsp K2SO4 x 3
1/4 CSM+B x 3 (alternate with macros)
10mL Excel daily
1/8 iron (DPTA) on non-CSM days
... snipped
Just to confirm so I don't have it wrong ... I thought iron was dosed on same day as mIcros (CSM+b) NOT on same day as mAcros (non-CSM days). ???
01-27-2013 02:57 PM
JeffHerr
Let's play "Guess the missing nutrient"!

Any other educated guesses or opinions on what's going on?

Funny thing is that I was using this same light strip before (2 years ago) with same tank and plants and they were growing great. Sometimes this hobby can be so challenging!
01-24-2013 08:21 PM
bikinibottom
Quote:
Originally Posted by JeffHerr View Post
Say, can one install lower wattage bulbs in a 4-prong T5 fixture? That'd be one way to reduce light as well as power consumption, no?
I asked this very question of the distributor of my fixture, who contacted the manufacturer, who said "don't do it". They said it would either burn the bulb out really quickly or would burn it out immediately.
01-24-2013 07:58 PM
micheljq Shouldn't be any phosphates PO4 dosed as well? I do not see any phosphates dosing.

Michel.
01-24-2013 06:59 PM
JeffHerr Say, can one install lower wattage bulbs in a 4-prong T5 fixture? That'd be one way to reduce light as well as power consumption, no?
01-24-2013 03:40 PM
bikinibottom
Quote:
Originally Posted by JeffHerr View Post
@plantbrain: just checking, but 5 times the recommended excel dosage for a 55 gal?

Thanks all! I'll increase Excel and reduce photoperiod to 8 hours.
I cannot control single tubes, so I may look at the screen approach.
FWIW, I have (2) 54w T5s on a non-CO2 40-gal-long, and I don't have the option to use only one bulb either, so I use the screen approach and run them 10 hours a day on a split photo period (5 hours on, 5 hours off, 5 hours on). Seems to work -- everything is growing well, some things better than others. Water sprite and brazilian pennywort growing like weeds. Red myrio has been trimmed trimmed/thinned several times in 2 months. Swords are all growing new leaves. Banana plant went from 2-3 leaves to 7-8 huge leaves in a month. Bacopa carolinia is sprouting new plants at the base. Vals are growing slowly. Microswords are the only thing that are struggling.
01-24-2013 02:15 PM
JeffHerr @plantbrain: just checking, but 5 times the recommended excel dosage for a 55 gal?

Thanks all! I'll increase Excel and reduce photoperiod to 8 hours.
I cannot control single tubes, so I may look at the screen approach.
01-24-2013 05:55 AM
Dx3Bash 2 T5HO is High light on a 55 Gallon and needs pressurized Co2. Either cut back on lights and only run one bulb, add some window screen or raise your lights about 10-12" above your tank. You could also choose to keep the lights as they are and get pressurized CO2. Lots of options, but your current set up needs modified. Also check your dosing as others previously mentioned and do your weekly water changes 40-50%.
01-24-2013 04:41 AM
plantbrain
Quote:
Originally Posted by JeffHerr View Post
Thanks to all for the notes. Here are more details:
No CO2, only 7-9mL Excel daily
I have 2x65w T5 for 10hrs/day

I will say that because I'm not dosing CO2, but am supplementing Excel, I'm not sure what exactly my EI amounts should be.

Someone suggested I should be dosing twice as much KNO3 as I am. Yes? No?
I would dose abut 1/4 EI if you use non CO2 Excel dosing.
IME/IMO, add a lot more plants.

You likely only need 1 of those bulbs, not both, so if you can turn one on for say 5 hours then off, then the other on for the last 5 hours, that would be best.

This is 100% CO2 related.
Excel will take a little time for the plants to bounce back, and that is reflected in your growth.

Since you are only doing 1/4 EI, you likely can reduce the water changes once things settle down to monthly.

Excel: dose this amount DAILY: 25 mls.
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