Need Identification, Diatoms or BBA?
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Old 10-08-2014, 10:57 PM   #1
Bruce6000
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Need Identification, Diatoms or BBA?


I think I nailed it down to diatoms or BBA, or possibly something else. I'm still trying to get my tank dialed in. I cut back from 12 to 8 hours. Running DIY CO2, canister filter, dual 26 Watt CFLs, one 6500K one 5500K at 6" above water level.

Thanks!





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Old 10-09-2014, 02:11 AM   #2
rick dale
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I have recently expirienced this myself. Its bba. Not easy to get rid of , especially with diy co2. Inconsistent co2 levels is a real problem with this type algae. You really need to go with pressurized co2 if possible. I put it off , and put it off not wanting to spend the money. But , since I have , I kick myself for not doing it sooner. Start reading everything you can about bba.
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Old 10-09-2014, 02:29 AM   #3
Bruce6000
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I think it's gonna be a no-go for pressurized CO2 anytime in the near future. DIY CO2 doesn't have an off switch, but do you think it would help if I pulled the airstone at lights off?
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Old 10-09-2014, 02:59 AM   #4
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You can start by not running your lights as long, probably best to cut back to 6hrs. Then I would suggest buying excel or making yourself your own batch with glut. Glutaraldehyde the active ingredient in excel not only serves as an organic carbon source but it also has algicidal properties, in that it will kill or choke out algae you have in there. I've been battling a pretty tough BBA outbreak in my 75 gallon and let me tell you it was BAD. I slowly increased the dose of glut each week. Now into week 4 the BBA is turning yellowish and is becoming weak. Large water changes also help

You'll get it, it just takes time. Good luck
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Old 10-09-2014, 03:39 AM   #5
Bruce6000
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Thanks man, I'll see if I can find some excel at my LFS. I'm already doing massive water changes- 50% every 3 days- reason being the water still has cloudiness from the MGOC, I guess that's keeping it in check somewhat.

I also noticed the BBA really started to take off when I added my second light source (before I just had the single 26W CFL), so yeah I think cutting back to 6 hours and dosing excel might do the trick. Thanks again for the tips guys!
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Old 10-10-2014, 09:04 AM   #6
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excess light, low co2 and high organics in water is what makes this algae thrive.

the cure would be something like lower lights, use excel/glut, pressurized co2 if possible, purigen in filter or WC, stable fert schelude
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Old 10-10-2014, 02:57 PM   #7
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Quote:
Originally Posted by Bruce6000 View Post
...

I also noticed the BBA really started to take off when I added my second light source (before I just had the single 26W CFL), so yeah I think cutting back to 6 hours and dosing excel might do the trick. Thanks again for the tips guys!

You might have just too much light period. I never caught the tank size here, but think about intensity verses coverage.

As in, two 15 watt CFLs will cover better, but be less intense than a single 26 watt. Those CFLs really kick out the light, I think people underestimate them because they are so inexpensive.

Food for though.
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Old 10-10-2014, 04:09 PM   #8
Bruce6000
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I think you might be right, Daximus. I'm kind of new to the hobby and I've been getting the sense that more isn't necessarily better when it comes to lighting. I've been making adjustments (changing the photoperiod and height) as mentioned. I do like the growth I'm getting but if algae doesn't improve, next step might be to reduce the wattage.

BTW it's a 15 Gallon but with all the substrate it's more like 10.
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