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Discussion Starter · #1 ·
Here is my setup...

40gal breeder
regular black gravel from petco
JBJ 2x 96watt PC Lighting 6700k / 10000k (I only run the 6700k bulb)
Emperor 400 HOB filter
Fluval 303

few stemplants
few anubias
amazon sword
few onion bulbs plants

before i was two t5 bulbs = 78 watt / 1.95wpg and it seem like my plants were pretty much surviving and not really growing much at all, eventually browning out... so i thought i might need a little more light, so i got the 2x jbj pc fixture but like i said i only run one bulb for 96w / 2.4wpg now i also do a daily dose of flourish excel.. but thats about it... but only prob i notice (been about a week since i got my new light) now is i see a lot of algae growth...

should i go with co2 now to help with the algae or is there a better alternative?

or should i go back to my t5's setup and buy co2 and fert? sorry i'm still very new to planted tanks!

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i'm also thinking of redoing my substrate, is it possible to just remove my old gravel and put the new substrate (flourite or something similar) without having to cycle the tank over since i do have fish?
 

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Welcome to the TPT forums! Sounds like you don't have enough growing plants to out compete the algae. Try adding some ferts to give your plants a boost. What type of algae are you having? As long as you keep the cycled media in your filter your tank should be fine changing out the substrate.
 

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The best way to out compete the algae is to get more plants. Like said they will absorb the fuel the algae needs to grow.

Dosing dry ferts and C02 would also help out with that amount of light. Try to get more plants and see how that helps. Also how long is the light on for? I had this same problem, lowered my times down to 8 hours a day and alage vanished.
 

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Discussion Starter · #4 ·
thanks, i've been lurking around for awhile now i finally signed up.

its just like green algae on the gravel and rocks but it scrapes off really easily i dunno which kind it is.

as for the lights its already on for 8hours a day.

what dry fert do you guys recommend?
 

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CO2 would be the best option, but Excel can also work as a carbon souce.

For the dry fertilizers, you will need at the very least: potassium nitrate, potassium dihydrogen phosphate and a good trace mix. Depending on your water chemistry, you may need calcium sulfate, magnesium sulfate and potassium sulfate.
 

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Here is something you can do...... make a DIY CO2, say about two 2 liter bottle worth and see what happens.......... cheap to build and easy to maintain
 

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Discussion Starter · #9 ·
thanks for the input guys, ill prob do a diy co2 and see how it goes.

what do you mean its not cheap to maintain? it doesn't seem to bad unless i'm missing something?
 

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thanks for the input guys, ill prob do a diy co2 and see how it goes.

what do you mean its not cheap to maintain? it doesn't seem to bad unless i'm missing something?
Cool

For the 40 gallon tank..... I really recommend that you build 2 DIY 2 liter bottles......... Make sure to connect them to one line with a water seal.

Good luck
 

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what do you mean its not cheap to maintain? it doesn't seem to bad unless i'm missing something?
The main problem is the hassle of changing a bottle every week. You will want to stagger the two bottles so that you are changing one bottle each week to maintain a steady production of CO2.

The expense comes with the time spent trying to make new batches of the DIY CO2 every week, and in addition, the 2 cups of sugar per bottle (you will be using ~8 cups of a sugar a month, which is quite a bit!)
 

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Discussion Starter · #12 ·
Cool

For the 40 gallon tank..... I really recommend that you build 2 DIY 2 liter bottles......... Make sure to connect them to one line with a water seal.

Good luck
yea i'll prob do that thanks.

The main problem is the hassle of changing a bottle every week. You will want to stagger the two bottles so that you are changing one bottle each week to maintain a steady production of CO2.

The expense comes with the time spent trying to make new batches of the DIY CO2 every week, and in addition, the 2 cups of sugar per bottle (you will be using ~8 cups of a sugar a month, which is quite a bit!)
well this is just to see how co2 will help me, never done it before, and i wanna see before i purchase pressurize co2.
 

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well this is just to see how co2 will help me, never done it before, and i wanna see before i purchase pressurize co2.
Once you decide to jump into pressurized, you will never want to go back to DIY CO2 :D
 

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I suggest you compare your algae to the pictures here.
http://www.aquahobby.com/articles/e_freshwater_algae.php

If it is blue green algae, I suggest you get rid of it first. What worked for me was a three day total blackout, cover the tank with a dark blanket and no peaking. The fish should be fine.

I hope I'm wrong but it happened to me when I upgraded my lighting without CO2. BGA is nasty stuff, while you can wipe it off easily it grows back quickly.

I hope you don't have it.
 

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Discussion Starter · #16 ·
i've taken a look at that **** and few other stuff but its not BGA, its just light algae on my glass and gravels sorta like a diatom you would get with new tanks but its very light so far...
 

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I use pressurized CO2 and cannot even imagine going back to using DIY CO2...... I use a 20 lbs cylinder in my 120 gallon tank.... takes about 18 months to use all of the gas

Later!
 

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Discussion Starter · #18 ·
yea.. ill prob go pressurized CO2 but i mean right i have 40 and i'm positive i will upgrade later to maybe a 60 or even my dream tank 125 lol... but yea when the upgrade comes i will go pressurized.

i was looking around, and i see this: http://www.aquaticplantcentral.com/gallery/files/7/3/3/2/Aquarium012_original.jpg

sorry for being noob but the smaller 3rd bottle is that helping with the co2 diffuse in the water...?

and also i was thinkign of diffusing it up into my powerfilter is that ok? or should i do something else?
 

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yea.. ill prob go pressurized CO2 but i mean right i have 40 and i'm positive i will upgrade later to maybe a 60 or even my dream tank 125 lol... but yea when the upgrade comes i will go pressurized.

i was looking around, and i see this: http://www.aquaticplantcentral.com/gallery/files/7/3/3/2/Aquarium012_original.jpg

sorry for being noob but the smaller 3rd bottle is that helping with the co2 diffuse in the water...?

and also i was thinkign of diffusing it up into my powerfilter is that ok? or should i do something else?
The 3rd bottle is referred to as a gas separator. It keeps any gunk from the 2l bottles from getting into the tank. You fill it with water, and then it also acts like a bubble counter.
 

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Discussion Starter · #20 ·
The 3rd bottle is referred to as a gas separator. It keeps any gunk from the 2l bottles from getting into the tank. You fill it with water, and then it also acts like a bubble counter.
oh thanks that makes sense, what about diffusing it with the powerfilter is that ok? i have a emperor 400 or should i make/buy diffuser.
 
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