Adding More Fish

[Skins]

Hello all,
I am very interested to know if i could add one more fantail to my aquarium, i now that i am very close to my stocking level.
Here is some info so you can advise me.

Aquarium:
Fluval roma 125
fluval 205 external filter
Tetratec APS 150

Occupants:
bronze fantail x1
calico fantail x1
red/white fantail x1
red cap oranda x1

Kind regards, Skins.

 

[Curiosity101]

I'd say you're more than fully stocked to be honest. But that's going by guidelines. What you really should be going by is your water test results, and how large the fish are.

What size are they all?
What is your water change routine?
What are your weekly nitrates before doing a water change?
And are ammonia and nitrite levels remaining at 0 at all times?

 

[Skins]

Thanks for your swift reply,
As for sizing three are about 2inches and the forth about 3inches.

I water change 30% once a week(gravel clean)

nitrate 10-20ppm (Tap 0-5ppm)

ammonia/nitrite 0ppm

Skins.

 

[Curiosity101]

Seeing as guidelines state you should only really have 2 fancy goldfish in there I would say don't add anymore.

If they were fully grown and you were still getting good test results then fine. But they will grow to be around 16x the bodymass they are now (give or take). And when you think about it like that you can really see how those nitrates may rocket, and how the amount of ammonia and nitrites being produced will be much higher (possibly even more than the filter can handle, though hopefully not).

Eitherways it's easier to add fish than to remove them, so I really would just wait till their fully grown to better assess the situation.

Edit: I just noticed that your tap is 0-5ppm nitrates... if at only 3x 2" and 2x 3" a 30% change is only keeping it to 15ppm above the tap water value then I DEFINITELY wouldn't be adding more goldfish.

Not because it's at anywhere near a dangerous level now, but that it's a good indicator that you may struggle with high nitrates imbetween water changes when the fish are fully grown.

 

[Skins]

Hello,
thanks for that sound advice, will leave well alone for now.

Kind regards, Skins.