yellow gunk

[gersheff]

As i was doing a water change the other day, I noticed this yellowish gunk sticking to the inner walls of the aquarium what is it?

Stats of my tank:

3 harlequin rasboras (getting 3 more)
2 emerals cories
1 dwarf gourami
?# of ghost shrimp

0ppm ammonia
0ppm nitrite

20% water change weekly

 

[Dangerdoll]

it's a bright yellow? could be an algae... but not sure... what's the consistency like... is it only on the walls and not the deco? is it mainly at the top?

 

[SomeGuy88]

I have some yellow gunk on the gravel of my fry tank. It looks like fungus to me but it hasnt caused any harm. The fry nibble on it sometimes to and they all seem fine. Could it also be left over food gunking up on the top of the walls? Try feeding less and see what happens.

-Dan

 

[gersheff]

it's on the wall (top, middle,) Some of the gravel has some weird colour as well. I will try feeding less. Currently I am feeding twice a day