Problem

1. Please explain the problems with your fish. When did you notice the problems and did anything unusual happen that you think started them?
I have a small 10gal tank in my basement, bare bottom with one piece of driftwood. I use it to grow out dither fish or as a non discus sick tank etc. I usually keep 10 fish in it just to keep the cycle going. Yesterday I did a big water change in it (roughly 70%) and wiped down the sides. I had noticed a red colored algae growing on the sides of the tank.

2. Symptoms (i.e. turning dark, excess slime, not eating, clamped fins, flashing, darting, clamped gills, white/yellow/green poop, hiding, headstanding or tailstanding, white on tips of fins, rotting or fungus, blisters/white zits on fish, bloated, cloudy eyes, wounds).

This morning I go down to the basement to find 5 of the 9 fish dead. other fish seem iffy too


3. What medications/ treatments have you already tried and what were the results. Include dosage and duration of treatment.

Ive done nothing other than just finished doing another large water change. I'm wondering if the red algae growing on the side could have been anaerobic bacteria that I hear about causing problems when stirred into the water column.

Tank/Water

4. Tank size and ages, numbers and sizes of fish.

10 gal, bare bottom with one piece of java fern covered wood, 6 small glow light tetras, 3 small white clouds


5. Water change regime (What percentage and how often).

bout 50% every third day or so

6. How long has tank been running? Is it bare bottom? If you have substrate, what type and how deep is it?

been running literally 5 years or more, as just a bare bottom spare tank with small dithers to keep the cycle up. I usually put new fish here to monitor/qt them before adding them to a show tank

7. Do you age your water? If you do for how long and what is the ph swing.

yes I age overnight, no ph swing

8. Parameters and water source;

Note: Water Parameters are important in diagnosing problems within a tank. If you don't own test kits for the following information, you can purchase them, test your parameters and post this info as soon as possible.


- temp __77___

- ph __7.4-7.6___

- ammonia reading _0___

- nitrite reading _0___

- nitrate reading _5___

What type of water or combinations of water sources do you use? If it is an RO/tap/well water mix, please list percentages in the mix.

- well water _100%___

- municipal water ____

- RO water ____


9. Any new fish, plants or inverts added recently.

no

10. Please tell us what you feed your fish and how often. This can be critical information for solving the problem so be as specific as you can.

they eat angels+ "the works" flake food daily

11. Include any pictures or videos you have which shows the symptoms. If you can't add them to this post, please provide a link to them.