The Puffer Forum

It has one F8,one ballon Molly, 2BBGs, and 9 Tetras

Its a 20 Gallon with only a little decoration, i think it needs more cause my puffers been pacing the glass all day and hasnt stopped until i fed him, and then he just resumed.

What kind of tetras? Is this a FW setup?

I think theyre cardinals i didnt really pay attention when i bought them, my bad.
but its really low end brackish around 1.002 and the tetras seem to be doing well in it,
but i really should of thought about the brackishness before buying them, ill probably make it full brackish in a year.
right now im worried my tank is overstocked...

Those tetras should NOT be in BW. They get up to 2", and they'll need more space than that. They are delicate; I'm surprised they've made it with the salt.

IMHO, you are overstocked. Get rid of the tetras and you should be okay.

Tetras actually originate from softwater. Can you return them? The puffer, molly & BBGs are plenty for that tank.

I agree. Overstocked with the tetras but okay without.

Even if the tetras seem to be fine, they are meant to be in freshwater, and the long-term effects of being in brackish are probably a very short life span in addition to being less healthy, etc. I'd rehome them or get another tank for them. Btw, cardinal tetras have a blue stripe and a red stripe going horizontally the length of their bodies and get 1.5-2 inches. Neon tetras are quite similar but the red stripe only goes about halfway down their body and they are smaller at about 1 to 1.25". Any tetra is fully freshwater, though, and needs to be moved out of there.

Totally agree too. Would be fine without the tetra. Is your molly a female or male? If its a female and you got it withing 2 or 3 months it may be pregnant...

Tetras in BW? Even in low SG they like soft water. They're sensitive too, I can't believe they're alive!!

Sorry, I just kinda repeated what the others say. Anyways I agree with all of 'em!!