help to ID algae issue

[Damon]

Hi all,

I have a overstocked tank tropical tank with Cichids (180L) I am about to move the fish into a bigger tank, for the past month I have been getting a slimy growth in the canister filter and now spreading on all objects in the tank.. The water is very smelly despite water changes, Up to 75%.. I have replaced filter media and treated with Stress Zyme.

as said, I am moving to a bigger tank but don't want to take the problem with me..

I don't know, should I use an algaecide or what else can I do.. I have a few photos of the filter intake and an air gore but have no photos of the inside of the filter yet... (with in a week or two the water flow is dropping due to the slime).

Tanks has Cichlids and Bristlenose only

[Josh]

What size is he filter, it may be too small for the stocking rates you have.

[Damon]

I am running a Ehiem 2217 canister and an Eheim 2012 internal filter

The loading is most likely the issue,

The stuff clogs my filters in about two weeks, it is very slimy

[Link2Hell]

what cichlids are they ?

[LithoMan]

cut back on feeding and lights

for a start

and is that the japanese filter mat? in your canister i dont recommend them in canisters they clog up to easy and slow down the flow.

I use them in all my hang on's and every 2 weeks i stop the filter and clean the mat out(not the media).

I have tried them in canisters and have had similar problems use sponge(similar to original).

[Flycaster]

Does your tank get a lot of sunlight now the sun is lower in the sky?