Small yellow spots, please help ID

[fishorama]

Yeah, so can malachite green... for some bacteria...Copper is a bit iffy IMO. Yes, it kills some stuff but it will almost surely render your tank unable to have inverts ever...& not all species respond well to it...think hard.

Lympocystis is not treatable AFAIK. It "may" be self limiting, but it can also reinfect fish. I had it in 1 tank 1 time I think. Only a species or 2 were affected, not all, but it was eventually fatal for them...or weakened the fish so they died of something else. It's been a really long time, 20 years so I may not remember very well...it wasn't yellow like on your fish, little white cauliflower as someone (tl?) said...unless there a new form of that too (eek! I hope not))

 

[PurpleGem]

Yeah, so can malachite green... for some bacteria...Copper is a bit iffy IMO. Yes, it kills some stuff but it will almost surely render your tank unable to have inverts ever...& not all species respond well to it...think hard.

Lympocystis is not treatable AFAIK. It "may" be self limiting, but it can also reinfect fish. I had it in 1 tank 1 time I think. Only a species or 2 were affected, not all, but it was eventually fatal for them...or weakened the fish so they died of something else. It's been a really long time, 20 years so I may not remember very well...it wasn't yellow like on your fish, little white cauliflower as someone (tl?) said...unless there a new form of that too (eek! I hope not))

Ah yeah, was planning on medicating in a hospital tank rather than the main one any. Thanks for the warning though, didn't realise copper would cause it to be inhabitable to invertebrates and such in the future.
Yeah, I read that lymph was like that, though I thought it can present as more yellow lumps too, I'm not an expert though.

 

[the loach]

it wasn't yellow like on your fish, little white cauliflower as someone (tl?) said...

You can't really judge by the color, Lymphocystis can look very different depending on the stage and even species.
It starts out small and might just look like ich then. But depending on the circumstances, it can get big (this is not big but bigger as an ich spot, I will not post the pics of severe cases as not to gross people out). But even when it is just a dot, it can be identified under a microscope cause it shows grossly enlarged cells.

 

[fishorama]

It may well be, tl, but I don't see PG's betta's yellow lumps &/or bumps in your pics. Those look just like white cauliflower "usual" lympho to me. I'm not sure what you're saying...please enlighten us, I'm not seeing it I guess...

 

[the loach]

I'm not saying it is Lymphocystis, I was just elaborating for you guys.

 

[PurpleGem]

The medication I'm planning on using says 5ml per 20L or 75 drops per 20L, so for a 5L container as the hospital tank 15 drops for 5L or 1ml for 4L is the correct dosage? It also says to repeat treatment after two days if necessary, should I leave him in it two days at a time?

Wish me luck catching him guys, he's too good at dodging the net.