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View Full Version : What kind of Algae ? pictures... & white bacteria discussion


nsamuel
06-11-2008, 12:46 AM
I have this tank that has been sitting with water (ph=6.0) and i had put assorted equipment and plastic plants in an effort to clean it up. I suspect some of the plastic plants might have had algae spores, because they were bought as used. After about a week of unattending to this cleaning chore, i noticed them first. Now, i have a this algae that has grown on the equipment and it also floats in small patches on water surface (water is still with no movement). As far as i can see, it looks like beard algae, but wanted to check with people who have had beard algae in their tanks. The picture of beard algae on the web shows a much darker color. In the picture below that shows algae on a wire, the size of the growth is about 5mm to 8mm.

One of the pictures shows the algae in one corner at bottom of tank. This is not very clear picture, and there is not actually anything on the glass walls - its just my camera not being able to focus through the glass properly. So, the only thing of concern is in the corner of the tank - the rest is to be ignored. In the corner the algae has grown more like a fluffy cotton ball, dark gray in color.

I am planning on disinfecting the whole tank and equipment with diluted bleach, since the tank is not being used and is getting prepared for a new setup.

Seperately, i wanted to discuss the ill effects of white bacteria, the type that typically blooms in new cycling tanks. I searched the web, and can not find many articles on the ill effects of this type of bacteria. Most search results only discuss about how this bacteria blooms during cycling and that it is not harmful. But most of these guys are not bacteria experts to judge how harmful they are. The only expert article i found on the subject says its not desirable to have it, and it grows on dead bacteria or other stuff, and that the cause has to be eliminated to remove the white bacteria. I would like some opinion on this topic from guys who are experts in aquaculture or someone who has read a good deal about bacterial types and their effects. Would like to see a thread on this topic that says something other than "yes its normal in cycling, dont worry about it". would be useful addition to the knowledge base of WWW.

Bk828
06-11-2008, 12:51 AM
looks like fungus not algae/bacteria

SchizotypalVamp
06-11-2008, 12:51 AM
Honestly, if you wanted a technical discussion, I would also try MFK. They have professional aquaculturaists people who work in public aquaria etc. All I know is that a bacteria bloom never(at least seemed) to harm my fish. I would try searching Nature, but I have a final tommorow and their search engine is really bad. Did the professional article state the name of the bacteria involved?

And that looks like fungus.

Ulan
06-11-2008, 1:24 AM
looks like fungus not algae/bacteria
And that looks like fungus.
:iagree:

No pigments means no algae.

nsamuel
06-11-2008, 1:50 AM
Honestly, if you wanted a technical discussion, I would also try MFK. They have professional aquaculturaists people who work in public aquaria etc. All I know is that a bacteria bloom never(at least seemed) to harm my fish. I would try searching Nature, but I have a final tommorow and their search engine is really bad. Did the professional article state the name of the bacteria involved?

And that looks like fungus.


Thanks schizo. I guess by MFK you mean monster fish keepers. I will post there too, havent been there at all. The only thing i found in kordon website is that the white bacteria are gram-positive bacteria. Since typical bacterial starter products like seachem stability contain an assortment of bacteria, its hard to say if they really try hard to eliminate the unwanted gram-positive bacteria.

So, if this is fungus, i am glad i caught it before i started using these in my new tank. Would definitely have affected the fish. Looks like i need to completely sterilize everything. I am thinking of using bleach solution 1:20 that has been popping up in web searches i do. Of course i would rinse everything atleast 3 times, after the bleach solution is removed from the tank. Any comments on the strength i would need, if i plan to soak everything in the large tank for a couple of days ?

SchizotypalVamp
06-11-2008, 1:57 AM
You are using plastic plants, so a scrub with bleach would be preferable, or they could absorb it. I'm not so sure you have to break down the tank, I would want someone else to jump in about that. I generally use a 10% bleach solution, but I have heard others have used pure bleach with no ill effect.

gram positive bacteria is a huge range of bacteria! It is a classification to do with whether you can stain bacteria when preparing for slides, apparently. I'll look up some stuff later.

nsamuel
06-11-2008, 2:11 AM
Just enrolled for MFK. It asked me who refered me, and i gave your ID here, hoping you have same ID there also. The tank does not have anything in it, just was cleaning it up and getting in ready, so its a simple task of taking out the fungus filled water and filling it with bleach diluted water, to make sure everything dies. then i would rinse everything. For plastic, i will follow your advise, and then maybe soak for a short time, to make sure that everything in nooks and crannies dies. I would rinse the plastic pretty good. Also double dose of dechlor should take out any left over chlorine later on, i think. Thanks for your replies schizo, considering you have exam tomorrow.

SchizotypalVamp
06-11-2008, 2:18 AM
Thank you, yes I do :). No worries, using AC as a distraction from my woes, lol. Just not doing any research right now/this week, or, for example, I would have fleshed my argument about fish feeling pain a bit more. Another way to flush the bleach is to let it sit with some fresh water for a little while :). Sounds like a good plan.

nsamuel
06-11-2008, 4:00 AM
Yes schizo, my plan actually was to let each rinse cycle to be "fill water to brim of tank, let it sit for a day, pump it out and refill again to sit for another day". Final rinse would include dechlor - i still have to do some research on this, but i think this would be enough. I just have to check on the web to see if the bleach would decolor any of the plastic plants or the equipment, cause bleach is caustic.

BTW, if the picture shows fungus, i wonder where it could have come from. Is it possible for fungus to stay in spore form dorment ? Because i did notice in the used plastic plants, dark layer of coating, which in retrospect looks like the deposits of algae or fungus (which the previous owner could have had). The color of the fungus is not all white, its grayish with a dark tinge to it.

SchizotypalVamp
06-11-2008, 4:11 AM
It sounds as if you have everything totally under control :)

I don't know, fungal spores travel by air so it may not even have to do with something you put in your tank.