First of all thank you guys for trying to help!
yyankeeyankeefan, i'm quoting your questions and giving the answers that I know:
1. Size of tank?
2. Water parameters
I only have tests for the following parameters:
NO2 0 mg/l
NO3 25 mg/l
4. FW (fresh water) or BW (brackish)?
5. How long the aquarium has been set up?
I have the aquarium for more than 5 years, but I've recently (September 2012) removed everything
from it and gave it a good clean, reduced the amount of gravel (i had like 4 cm height and now
i've 1 or 2). I change the carbon package on the filter every month and a half. And the most recent thing i've changed (in the 3rd of November) was the light. I had a SERA sunlight and now I have other from another brand, with a softer light.
The bugs only appeared after I've changed the light, but there is no contact between the light and the water.
This new lamp is an Aqua-Glo T8 (Fish color, enhancing aquarium bulb), "ideal for freshwater aquariums and planted aquariums"
6. What fish do you have? How many are in your tank? How big are they? How long have you had them?
I have few fish.
One Sailfing pleco (http://www.liveaquaria.com/product/p...&pcatid=1021);
One siamese algae eater (Siamese Algae Eater (Crossocheilus siamensis) with photo/picture
Two suching loach (Algae eater / sucking loach - Gyrinocheilus aymonieri, with pictures / photos
One neon tetra jumbo (Tropical Fish for Freshwater Aquariums: Neon Tetra Jumbo
and One golden viel angelfish (Tropical Fish for Freshwater Aquariums: Gold Veil Freshwater Angelfish
7. Were the fish placed under quarantine period (minus the first batch from the point wherein the tank is ready to accommodate the inhabitants)?
Yes, they were, when they arrived in the tank, a long time ago.
8. a. Any live plants? Fake plants?
Yes, i don't know the species, but they are the same for more than 3 years.
b. Sand, gravel, barebottom?
c. Rocks, woods, fancy decors? Any hollow decors?
A coconut, a wood piece and some rocks. All of them have been there for the last 2 or 3 years, the only thing I had latelly (in September) were just two rocks, which have been boiled before and kept in a closed bag, and now i just washed (hot water, not boiled) them before putting in the tank.
9. a. Filtration?
Yes, an internal one. I have it on 24/7, and the filter package is changed every month and a half.
Also, it's the same filter since the beginning.
I have one, with a thermostat set for ~30ēC
10. a. Lighting schedule? What lights are used?
Yes, I have the light on for about 10 hours
b. Any sunlight exposure? How long?
11. a. Water change schedule?
I change normally about 10 liters every 3 months
b. Volume of water changed?
c. Well water, tap water, RO water?
Tap water with the appliance of a product to remove chlorine (Nutrafin Aqua plus)
d. Water conditioner used?
e. Frequency of gravel/sand (if any) vacuumed?
Since i've changed and cleaned everything in september, i havent vaccumed anything again
Dry food flocks
How often are they fed?
Once a day.
13. a. Any abnormal signs/symptoms?
b. Appearance of poop?
Didn't notice...but actually I havent seen a lot of poop going around like I used to.
c. Appearance of gills?
14. a. Have you treated your fish ahead of diagnosis?
b. What meds were used?
15. Insert photos of fish in question and full tank shot if necessary.
another few questions that might be important are:
1. are they wild caught inhabitants?
2. was the water from acclimation added to your tank?
3. did you notice these bugs after any specific thing was added/or occurred to your tank?
The only thing I've changed latelly was the light, and when I've changed all the aquarium, the
only thing new was the two rocks.
Once again, I point that these bugs are never found underwater, only on the surface.
I've had some photos of the overview of the aquarium, and to close shots, one from the gravel and some random photos of the fish.
Filter: Notice the small white orange dots, those are the bugs of the first photo.
Random fish photos:
I have been on the internet, on the website Freshcatch suggested and I think it very similar to Springtails, Collembola