water movement with GBR
Another question about keep GBR's. I added a small bio-wheel to my 23 gal tank, with an AC 30 which was already on the tank. The water output is weak on the Aquaclear, and the water was getting that protein film. With the addition of the biowheel, the film is gone, but now I'm worried there is too much water movement for this type of fish. Perhaps I should get rid of the Aquaclear and just use the other one by itself. Any thoughts about this from someone who has more expertise, or am I worried for nothing. I can definately hear the water as it falls in the tank, and see the stream in the tank, and with the AC I could hear nothing.
The wild fish, Mikrogeophagus ramirezi, lives in very still, shallow and warm water stream lagoons on the savannas of Venezuela. Think of this area as the "badlands" or a dusty prairie landscape. Here and there one finds depressions where there is grass and palm trees along thes tiny streams that form lagoons of still water. Sand or mud substrate, no plants, lots of branches and leaf litter; the fish live at the edges under overhanging vegetation that extends into the water.
I would keep the water movement as minimal as possible. A sponge filter which would provide some surface movement should be sufficient.
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