Hoping someone can shed some light on this issue. I have had a 29 gal tank set up since the beginning on august. The water parameters are as follows: ammonia
10(6 from tap)/pH
11/KH 5. 3 blackskirt tetras were added 2nd week of september, after initial fishless cycle. since they were the first addition there was no quarientine. shortely after interduction noticed ICH
. innitially treated with maracide per instructions, treatment was inneffective and was directed by mardel to use coppersafe. Changed 50% water as instructed and began coppersafe. Ich cleared up in 5 days, maintained 1.5-2 PPM
for total 21 days before discontinuing treatment of new water used for partial water changes. 35%-40% water changes are performed weekly. All 3 fish recovered well, regained appatite, and seemed to be dooing well, one took about a week longer then the others to regain energy and appatite. All was well for a couple weeks when 5 nights ago all 3 were swimming under the 36 watts of actinic blue/10000K light that has been on a 12 hour cycle since the tank was first set up, before I had any fish. I was sitting on my couch enjoying my fish, and eating a snack, I looked up at the tank between bites of pie and noticed that the fish were suddenly huddled
strangely close to the bottom against the front glass looking very stressed. I stood up to take a better look and they started darting all over the tank, and eventually all took cover in a ditch behind a dense clump of plastic plants. They were completely shocked, twitching and on highg alert. a few minutes later the lights were due to shut off, and afterwords the fish relaxed and resumed normal activity. the next morning they were fine before the tank lights went on. no flashing, no twitching, fins erect, playful with each other, no spots or anything abnormal. Then the lights went on and they freeked out, same as the night before. I tried to leave them alone thinking they would relax after a while, when i returned they were acting the same as when I left 5 hours before. I shut off the light and within 10 minutes they were fine. Now it has been 5 days and they are still completely shocked by any amount of light besides ambient room lighting. the room is well lit by the time the tank light goes on in the morning, I have tried a different light above the tank(mutch dimmer) with the same results. I tried to partially shade the tank with some opaque material under the light, same results. but while the tank light is off they seem very happy. My ph is a little high but it has been stable since setup. I would like to resume stockng, but not until i understand whats up with these guys. seems strange that they would change behavior so abruptly? ayone have any ideas. btw there are rocks, and plants to hide in.