Progress being made. But still some Algae Problems. Help ID this Algae?

outlawboss

AC Members
Nov 8, 2008
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San Diego
I posted awhile ago as a complete newbie to FW planted with some algae problems and have been really enjoying learning how to maintain a healthy tank. Thanks everyone who helped out with the thread algae problem. It's all but gone. But of course, there are still some growing pains.

First I think a full tank picture is in order to show some progress. Sorry for the reflection. Bow fronts and daylight photography don't seem to mix.
fishtank-121808-06.jpg


But I do still have some algae problems and I'm hoping you much more experienced folks can help identify it and recommend a solution. I believe it's some type of black (red?) hair algae. It loves to grow on my plants, which is very disconcerting especially since I'd hoped that by adding C02 it would fade away and leave me alone. One really weird/cool thing I noticed was that once the lights had been off for an hour or so, it turns sort of flourescent orange/red. Here's what it looks like when it's in it's evening "glowing" stage.
fishtank-121808-01.jpg


Its attacking the stems of my lovely banana plant (stocks grow SO fast on that thing).
fishtank-121808-02.jpg


Yep, it likes driftwood too.
fishtank-121808-05.jpg


And finally my poor lace java fern. Was so lush and green before the algae attack. I also think I squished it a bit when trying to remove some of the algae by pinching off leaves.
fishtank-121808-04.jpg


My water conditions are relatively stable at the following:

25 gallon tank with 20% weekly water change.

Nitrate: 10-20ppm
Nitrite: 0-.5 ppm
Alkalinity: 80
Ammonia: 0-.5 ppm (moves between the two)
PH: 6.6 (just after lights out)
KH: 71.6
GH: 89.5
CO2: 16-20 ppm (red sea C02 system using 20 oz paintball style tank)

Lighting:
I've got 48 watts of T5 light. One 10k and one 6500k, so hovering right under 2 wpg. My photo period is about 11 hours a day.

Ferts:
For awhile I was dosing Excel daily followed by daily (small) doses of Iron, Nitrogen and Potassium. Then I would dose regular flourish once a week during my water change.

There are only a few things I can think of to help solve this. I've stopped all ferts, but it's only been a week so it's hard to tell if it helps. There might have been too many ferts in the water column, allowing the algae to eat them up. I've got flourite substrate so hopefully the plants will now get all they need from that, plus what the fish provide. I also considered my photo period. I reduced it from 12 hours to 11 a week ago, and maybe I should go lower?

Really looking forward to aquascaping a little better and getting some more plants, but I would like to make sure I know how to control this stuff before making that leap. Thanks everyone. Really enjoying this forum.

- Angelo
 
Looking at the fourth pic down, it looks like blue green algae to me, I cant really see algae in the other pics except a few dots on the leaf. Hopefully others will chime in with thoughts, but I will note that BGA is not a true algae, but a bacteria.

Either way, your lighting is to low to be adding that many ferts, or excel. Keep up with regular water changes since you have now stopped dosing ferts, clean the algae off what you have the best you can, and give it a couple weeks to see if it comes back.

BTW, your tank looks awesome!
 
Thanks for the compliment. :)

I'll do some research on blue-green algae, see if that's what I'm up against. You know, just tonight I noticed what seems to be a slight decline. Could it be that stopping ferts, a water change, and reducing photo period have started to control it?? I hope so!

Before long, I'll move to a 96 watt setup, which will then put me over the threshold of low/med to a more appropriate light for my liking.

Looking at the fourth pic down, it looks like blue green algae to me, I cant really see algae in the other pics except a few dots on the leaf. Hopefully others will chime in with thoughts, but I will note that BGA is not a true algae, but a bacteria.

Either way, your lighting is to low to be adding that many ferts, or excel. Keep up with regular water changes since you have now stopped dosing ferts, clean the algae off what you have the best you can, and give it a couple weeks to see if it comes back.

BTW, your tank looks awesome!
 
Lovely tank :). With ammonia and nitrite levels like that, it sounds like your tank hasn't quite finished cycling. A couple of biggish water changes weekly will help the fish and the algae problem.
 
Yup, needs to finish cycling, since Ammonia will spike algae growth, since plants and algae prefer this over nitrates.

As to Blueiz's comments, the algae ID is correct, but ferts are still needed since you inject CO2. As for BBA, I would turn up the output of the CO2, shoot for 20ish ppm. Plus adding some fast growing stem plants will really help with keep algae in check too.
 
How long does a tank generally take to cycle? This one has been planted for about 3 months to varying degrees. Over that time I've added more/better equipment.

I am starting to think that part of my problem may have been too many ferts completely. I was overdosing, trying to get the plants to grow, but I may have just fueled the problem.

Quick update though, I think the bright pink coloring might actually be the problem dying off some. Everywhere I see that color, it seems to be retreating slightly, so that has me hopeful.

Thanks for the help. I'm really trying to get a handle on this hobby/addiction so I can do some cooler stuff later on.
 
I see a few different Alagae Types.
GSA on the glass is low Phosphates/C02
Red Algae and BBA is basically the same. - Low C02
That Algae on the stump looks to be GSA and Green Dust Algae. Green dust is also a spore like Blue Green Algae. BG is usually slimy to the touch.

I think 11 hours of light with 20mg/l C02 is good. A couple 50% PWC 2-3 times a week over the course of three weeks and dose ferts on the lower end of the target levels. That will help with getting Nitrates and Ammonia to 0mg/l, deplete existing Spores and help you find that happy medium between ferts/lighting and C02.
I would go ahead and add half dozen or so stems of fast growers too.
 
Great info. Thanks.

Couple more questions. With approx 2.7 WPG, what is an example of an interesting looking fast grower? Anubis? Crypto?

Also, if my phosphates are low specificially, how would I be able to increase them without negatively effecting the rest of the balance?

I'll try some more frequent water changes w/reduced ferts and let you guys know how it comes out. I would expect it to take a week before I notice a difference.
 
i know of no anubias that like high light
and if i was you i'd look at adding More plants maybe dwarf baby tears or dwarf sagitaria and a good amount of it make a carpet. blaxia japonica medium height plants that you can have lots of without it taking up space
 
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