Zebra Danio with possible dropsy and other issues
Hi. I have a 10g freshwater aquarium that I have had set up for about 2 years. Not sure what all you need to know to help me, but here is what I have in my tank:
3 Zebra Danios
3 Black Fin Tetras
1 Apple Snail
Recently (about two months ago), I started having issues with algae. No idea what could be causing it but I am working on that one. Using frequent water changes, tried taking everything out and soaking in bleach water, there is no sunlight anywhere near the tank, the hood light only stays on long enough for them to eat. Using "algaefix" right now with so so results. Did a water change last night and noticed the water was very cloudy, which almost never happens right after a water change. I have had the charcoal filter out of the filter for the duration of using the algaefix so the only filter in there right now is the white one which does not ever need changing. I did take it out and rinse it, as it had algae on it. I have heard that this can cause a restart of the cycle, not sure on that one or even if it would do so this fast. Sorry, I am not up on all the terminology...
Anyway, this particular danio I have had for close to the two years I have had the tank up. He has always been "chubby" , but this morning he was VERY fat. He is swimming around like he's scared, and his scales on the top are sticking out like he has a buzz cut or something.
I don't know if something happened with last night's water change..we did it the same way we always do..or if this just happened. I am pretty sure it is dropsy. I don't have a way to get an image for you right now, but may be able to later this evening. My other fish are acting weird as well. Not eating, swimming around frantically, hiding. I don't know if this has anything to do with either the algae..which is not at all noticeable as of now. Just a very minute amount on the filter, which I cleaned off, or the algaefix.. which I put some in last night after the water change, or what is going on.
Also, my Apple snail started floating on top of the water last night. Something I've never seen him do in the year I have had him. I was told to take him out and "smell" him, he didn't smell bad and at first when I touched him he didn't jump or go back in his shell. However when I was taking him out to "bury" him, he did. As if he knew what I was doing lol. Anyway, he finally went back to the bottom of the tank this morning. I was worried. It seems as if everything is going wrong with my tank all of a sudden and I don't know what happened.
I hope someone can help me here. As I said I have had these guys for a long time and I am kind of attached to them. :)
Welcome to the forum and to the TFK site first of all.
Algae will unsightly is not a major problem in our aquariums, it can be the amount of food you are feeding causing a bloom as you mentioned you only keep the lights on for a small period of time.
It is very possible that with cleaning everything that you have indeed sent the tank into a cycle, good bacteria needed for the nitrogen cycle not only live on the filter media but also in and on substrate, decorations.
The washing with bleach will almost certainly have killed these bacteria..
Can you provide your water parameters ammonia, nitrite, Nitrate, these will give a better understanding as to what is going on in your tank...also how often do you feed your fish?
Yes. I will have to wait until tonite however. Hopefully my little danio will make it. I am worried about him. He looks awful..
And also the bleach water cleaning of the decorations and gravel was about a month ago. The cloudy water and the zebra danio being weird just started last night. The only thing I have done as of last night was a partial (1/3) water change and the algaefix drops, and rinsing the white sponge media to get the algae out of it.
And I feed them once a day, in the morning. And only what they have usually been able to clear out in about 2 minutes. Oh heck ..almost forgot. I did get some frozen blood worms (which they love) and feed them some last night as well.
Once you provide the water parameters then it will be easier to see what (if anything) is going on with the tank.
The cloudy water could be from free floating algae or a from a bacteria bloom if the tank did indeed go into a mini cycle after the cleaning. Bloodworms would not cause the issue unless you fed massive quantities. It could also be just debris from cleaning the filter of algae.
Remember if you clean anything from your tank ALWAYS clean it in tank water and NOT tap water. Chlorine and other chemicals in tap water will kill any bacteria.
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