Turnover Rate in Angel Tank

[matseski]

I recently obtained 10 medium sized angels (4-5" tall, 2-3" body) and noticed that they never left the bottom back corners of my tank, below all of the plants. I also noticed that whenever they swam in front of the inlets, they were practically horizontal. It is a 120 dual overflow tank with about 1000gph, so I figured that the current must be too strong for their large cross section. I dont have this problem with my smaller 1" body angels. I turned my Jebao DC9000 down to about 50% power (~500gph) and they all emerged, but still still just stay put along the sides for the most part. When the filter turns off for feeding, they are everywhere. Perviously I was considering adding powerheads to increase water movement over my plants, but now I am thinking I need to slow things down. Is it ok to go to 3-5x hour turnover?

So, how much turnover are you guys running for your angels, particularly larger fish?

 

[xraycer]

Hard to give an answer without seeing the actual set-up and stock, but 3-5 should be fine. Having plants should help with bio load, but if you feel that's not enough, there's always the option of increasing water change volume and frequency.

 

[pdandy]

I have 10 angels in my 265 gallon. Running two return pumps at 1000gph each and a 1400gph power head and my angels are always out front.


Sent from my iPhone using MonsterAquariaNetwork app

 

[matseski]

They seemed to be a little more active last night, even at full pump speed. Still not as active as the 2 small ones, but at least not all clumped in the bottom back corners. Perhaps it is partially just from the stress of being in a new tank with other fish.