Who Gives A Fish Forums

I'm glad to report that the hole on my lovely betta's dorsal fin has miraculously disappeared. I've made a few changes to the tank, though, which might have contributed to this positive development.

I reduced the photoperiod to 7 hours a day, figuring it couldn't hurt to give the tank a bit of a ...

Today I noticed a small hole on my betta's dorsal fin, as you can see below:










My setup is as follows:
• Tank size: 15.74" x 11.81" x 9.84", holding 7.29 gallons;
• Substrate: 11.02 lbs of Aqua Pedras gravel nº 0;
• Heating: Roxin HT-1300/Q3 50 W, set to 26 ºC;
• Filtration: Xynyou xy ...

My sipLion looks like this:



I've been keeping fish since 2012, and this is my first encounter with cyanobacteria in any tank. I'm not sure I agree with stripping the tank and starting from scratch - it took over a month to cycle, and here in Brazil, there aren't any reliable biological ...

Today I recorded another video of my lovely betta's dorsal fin.

The water became less turbid after the partial water change, and this also improved the illumination - even with my simple desk lighting setup, using an old fluorescent lamp.

I've come across a few instances where people successfully eradicated cyanobacteria using azithromycin. I'm not sure if it's worth trying, though - has anyone else had any luck with this method?

Recently, I added a curtain to the window on that side of the tank, hoping to reduce the amount of ...

I appreciate your input, barnicle. I'm considering your suggestions and I'd like some further clarification.

What percentage of water change would you recommend for daily changes? I'm concerned about shocking my betta with drastic changes, so I'd like to proceed cautiously.

Regarding the ...

Today I noticed a small hole on my betta's dorsal fin, as you can see below:










My setup is as follows:
• Tank size: 15.74" x 11.81" x 9.84", holding 7.29 gallons;
• Substrate: 11.02 lbs of Aqua Pedras gravel nº 0;
• Heating: Roxin HT-1300/Q3 50 W, set to 26 ºC;
• Filtration: Xynyou xy-2835 ...

I'm still figuring out the optimal formula, as it seems to be a trial-and-error process - and I did experience some setbacks this year. However, my current setup appears to be working well for now. I use dechlorinated tap water and aragonite as a substrate, maintaining a salinity of 30 g/L, although ...

I haven't updated my betta's photos in months, but he's doing alright.

I've been feeding my Betta splendens live adult brine shrimp every weekend, which I've been successfully culturing since March. Occasionally, I substitute them with tiny black soldier fly larvae from my compost cultures ...

I feed my betta with Poytara Betta four times a week. I also do one-day fasting and on weekends, I treat him to live brine shrimp or tiny BSFL from my cultures. Before feeding the shrimp, I prep them with dried yeast or Spirulina powder for bioencapsulation.