Dieing fish

[ajh1989]

Have you tested your water?

No

If I did not test my water...

...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.

Do you do water changes?

Yes

If I do not change my water...

...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.

Just about everytime I do a water change a fish dies 4-5days after. What could be the issue? I have a freshwater 55gallon tank with a canister filter that does 265gph. 2) 2 inch plecos, 5) glotetras, 6) kuli loach and now down to 1) angel. I did have 5) Angels. They are the ones that keep dieing. Test strip always read right where they need to be.

 

[duanes]

Do you use a dechlorinator on the new water change water?
Are water parameters very different" on the test strips " after" a water change than the tanks water "before"?
What are the parameters of your tap water, water parameters of tank water before a water change?
Parameters like pH, nitrate, hardness etc?

How often do you do water changes, and what amounts?
One 50% change per week.?
One 75% water change every 2 weeks?
One large water change per month?

 

[ajh1989]

Do you use a dechlorinator on the new water change water?
Are water parameters very different" on the test strips " after" a water change than the tanks water "before"?
What are the parameters of your tap water, water parameters of tank water before a water change?
Parameters like pH, nitrate, hardness etc?

How often do you do water changes, and what amounts?
One 50% change per week.?
One 75% water change every 2 weeks?
One large water change per month?

1) Dechlorinator is always used, but I usually just put the garden hose in the tank and then treat the whole tank.
2) parameters before and after always seem to fall within recommended fish health guidlines. Idk if my test strips are legitimate or not. I use JNW 9 in 1 test strips.
3) I do a water change ever 3 weeks. By then %25 has evaporated and I take out %25 and add 50% back.

 

[ajh1989]

Correction: pump does 525gph*

 

[Tyler Fish]

That's a lot of water evaporating. I have a 55 gal with a really hot light (it keeps the water warm enough for the fish) and in 3 weeks it would evaporate around 10% and that's on the high side. Do you use a light and if so, what wattage (I think mine is like 75 watt).

 

[ajh1989]

That's a lot of water evaporating. I have a 55 gal with a really hot light (it keeps the water warm enough for the fish) and in 3 weeks it would evaporate around 10% and that's on the high side. Do you use a light and if so, what wattage (I think mine is like 75 watt).

It could be more around 16. 5% evaporation so I'd be doing 1/3rd tank water changes, unless the previous owner didn't tell me the correct gallon size on the tank. I have a 40 watt light and a water heater in there. It also catches sin rays from the window it's against.

 

[Tyler Fish]

Ok, have any other species of fish died in a water change.

 

[ajh1989]

Ok, have any other species of fish died in a water change.

Nope, just the angel fish.

 

[Tyler Fish]

How long have you had anglefish in your tank

 

[ajh1989]

How long have you had anglefish in your tank

1 of them is from a previous tank. She's about a year old now, the loan survivor. The rest died in the past 6 months and were put in there 6 months ago.