What's going wrong here...?

aley28

New Fish
Apr 22, 2010
5
0
0
#1
Something is going wrong with my tank, I think. Or I just have really bad luck. As a forenote - I'm sorry, this is probably going to get kind of long.

I'm new to fishkeeping. Very new. My tank has only been up and running since the first week of December. I cycled the tank with six zebra danios, two of which died of ammonia poisoning. One more became sick with something else... she lost weight, her stomach became very sunk in, etc. She was still eating up until almost the very end, when I euthanized her because the parasite treatment didn't seem to be working. I'm beginning to think that this problem is still in my tank, because I'm still losing fish.

I added four dwarf gouramis in January (bad idea, they were all male and stressed each other out. I didn't know better. I now do)... and they did fine up until the second or third week of February when I added four neon tetras, four cardinal tetras and three more dwarf gouramis (2 female, 1 male). Oh, and three mystery snails. This completely overwhelmed my beneficial bacteria and I lost all of the neons, all of the cardinals, four of the gouramis and one danio.

When things seemed to have evened out from that disaster and my ammonia and nitrite levels were back to zero, I added four new zebra danios. One of them died the day after I brought him home, but I figured it was stress or shock from improper acclimation or something. Then things seemed to be fine for a couple of weeks.

Then one of my dwarf gouramis started pooping white, stopped eating and wouldn't come out from beneath one of the plants. One night before bed, I looked in and noticed her dead. I pulled her out and kept a close eye on the others. Two or three days after she died, my other remaining female started showing the same symptoms. I euthanized her this past Sunday. Now my remaining gourami is showing these same symptoms.

For the past couple of weeks, I've been busy setting up a six gallon aquarium, and I was going to seed it from my big aquarium and add shrimp. This evening, I went to go dig in my filter and see if there's anything I could pull from it to seed with, and I noticed that one of my danios was laying on the bottom of the tank, dead as a doornail. He appeared perfectly healthy as of last night.

Tank facts:
- 46 gallons
- Ammonia: 0; Nitrite: 0, Nitrate: 5ppm, pH: 8.0
- Set up in December 2009
- Stock: 4 danios, 1 dwarf gourami
- I do weekly 15%-20% water changes.

The nitrates seem a little low to me, but I'm kind of figuring that its because my tank is so lightly stocked. Is that how that works?

I hope somebody can help me out here. I'm so concerned that there's something wrong with my entire tank that I'm considering returning the fish to the store, euthanizing the gourami, emptying the water, and boiling/bleaching everything in the tank and COMPLETELY starting over, cycle and all. I'm definitely not going to seed my little tank from the big one. There's no way I want to risk spreading the problem to another aquarium.
 

lynx336699

Medium Fish
Oct 22, 2009
81
0
0
Chicagoland area
#2
your ph seems alittle high. i use this stuff made by seachem called neutral regulator to lower ph to about 7.2 and helps soften water. you can buy something called benefecial bacteria put it in wait three days and check nitrates if it doesnt go up give another dose wait three days and so on. when it reaches desired nitrate level do a 25% W.C and rinse filter media alittle bit. you dont want to totally risnse it out. tthey also make a water softner pillow. but i prefer seachem neutral regulator and discus buffer since i need my water super soft for my discus. good luck i hope ive been able to help you. P.S what temp do u keep ur tank and what size heater is it?
 

lynx336699

Medium Fish
Oct 22, 2009
81
0
0
Chicagoland area
#3
now that im thinking about it with disease syptoms my friend was having a problem like that when he moved resetup his tank with two angelfish. that he had for at least a year with no problems. well where he moved the tap water was 8.5ph and he started using a different heater that someone gave him. it was like 200watter he was using on 28 euro tank. so what was happening when the heater kicked on it raise it to 90 degrees then turn off and wouldnt kick back on til like 78 degrees. he couldnt figure out why heater was so touchy because it was too many watts for a tank that size. so his fish were doing the same white feces stop eating even to where it looked a marble was stuck in its anus. the constant fluctuating of temp. had caused an internal parasite. a new heater some medicated flakes and medicine fixed it. mind u we softened wwater lowered ph and raised nitrate levels.
 

aley28

New Fish
Apr 22, 2010
5
0
0
#4
Yes... my pH is high. Its naturally high out of the tap. At first, I considered lowering it, but now I'm more considering just getting fish that like the high pH. Is the pH the problem here, though? I'm completely unsure.

I really think that my remaining gourami has a parasite problem, because of the white poo. I picked up some parasite tablets at Wal-Mart (the only ones they have) but I don't really have a quarantine tank. I mean, I have the six gallon one, but I don't want to put a sick fish in there. >_< Is it worth treating the entire tank?

I keep my tank at 78˚F. I use the Marineland shatter proof heater... rated for up to 45 gallons. Um... 150 watts, I believe?
 

aley28

New Fish
Apr 22, 2010
5
0
0
#5
Mm... I've never seen my temperature go above 78˚.

How do you get a fish that won't eat to eat medicated flakes? I've read that they're more effective... but my gourami won't even come out of his hiding place at feeding time anymore.
 

lynx336699

Medium Fish
Oct 22, 2009
81
0
0
Chicagoland area
#6
the tablets shouldnt hurt the other fish if anything it helps them keep immune. lowering the ph wont hurt them i always kept my cardinals and gouramis at 7.2 and always did good should get a test kit to check your water hardness though. i use to have problems with silver hatchets because my water was too hard they would only last a week or two and the next thing you know they would just die for no reason. ive bought four hatchets for my discus tank over a month ago and their all still doing great. no problems no signs of any stress. my 55gal is 6.8ph 0 ammo. 0 nitrites, 20ppm nitrates. water hardness is like a 6 kh. most tropical fish need between 6-11kh.
 

aley28

New Fish
Apr 22, 2010
5
0
0
#7
Well right now I only have danios and a single gourami. I don't know if I want to go messing with the pH too much unless I can determine that that is, in fact, the biggest contributer to the problems.

What are some good test kits for gh and kh?
 

lynx336699

Medium Fish
Oct 22, 2009
81
0
0
Chicagoland area
#8
API Gh&Kh test kit. adjusting the ph for fish is no big deal 7.0 is neutral its just a pain if your water is really hard. those ph up and ph down bottles dont work if your water is really hard thats why i recommend seachem neutral regulator because its like stress coat removes metals and chlorine. and also helps soften water so when it lowers ph it stays lowered. my 20gal with my platys i keep at 7.4ph just because platys like ph alittle higher. the water from my sink is about 8.5 to 9.0 and really hard. so i had to soften it with softner pillows in the beginning so i could lower ph.
 

Feb 27, 2009
4,395
0
36
#9
I would not try to adjust you pH with chemicals. Changes in pH are far more stressful than letting it be wherever it is. Likely the fish are at the same high pH at your local fish store if you live in the same city.

I've kept and bred danio at a pH of 8.2 with no deaths.
 

aley28

New Fish
Apr 22, 2010
5
0
0
#10
I don't really intend to mess with the pH, especially right now.

My remaining fish are looking fine this morning, except the sick gourami. I think I am going to pull my snails out and put them in a container of some sort, and then treat the tank for parasites.