Hello,
I am a beginner tank keeper with a 10 gallon planted tank. I have 1 honey gourami and 3 panda Cory, who all seem to be doing well. However, I’ve noticed that the gourami and 2 of the Cory have darkened in color since I’ve gotten them. They all seem to be acting / eating normal for the most part, sometimes the 2 Cory that are darkened also frantically swim at the back of the tank. I think they are both babies, they are quite small
Attatched pictures are my Gourami and one of my panda Cory that has gotten “darkened” and the other one that is normal color. Idk if the pictures can really capture their darkness. But for the gourami specifically, I feel like it’s looking quite dull / not as vibrant as it should be
All my tank parameters are in check according to my api test strips (I’ve heard they are not that accurate tho), but I have consistently getting 0 ammonia, nitrate, nitrite weeks before these fish were added and still now.— One thing is that the KH is at 0, is this supposed to be higher?
also, one of my panda Cory (one of the 2 that are “darkened” ) also sometimes swims quite erratically, sometimes jerking over on its back or sideways. Is this a sign of stress and if so what can I do?
does anybody know if I should be concerned / have dealt with this darkening of their fish before? Any tips and help would be greatly appreciated 🙏🏼 thank you very much!
Also plz feel free to leave any constructive criticism / suggestions on my setup / planting 😁