Are these too crowed?

[trying]

75gal tank, 350 pro magnum filter, uv light.
1-6"upside down cat, 1-6"bala shark, 2 large silver dollars, 1 striped raphael about 5" . 1-6" pleco, and 5 small corys.

I thought I was okwith the size of my 75 gal tank, but after reading some of the threads about bala sharks I am not sure.

75gal with three large orandas, 350 pro magnum filter and 5 corys.

A 45gal corner tank, 4 tiger barbs, 1-5"spotted raphael, 1 4" clown loach, 1 3" clown loach, 4-neon tetras, 3 small bumblebee catfish, 5 albino corys. 350 promagnum filter and a uv light.

55gal tank, 1-7" angle catfish, 2 cichlids that were just given to me. 2 30-60 gal tetra filters with bio wheel.

[Rbishop]

On your first 75 with the bala, you really need to give the bala up. A 125 is more like what you need considering their adult size and if you take into account they should be kept in a group or 5-6, you are talking an even bigger tank. Also, if that is a common pleco, you will need to move it to a larger, 125 and up in the near future. They easily will push 12-18".

How big are the Orandas? You note they are large and that drives me to think at least 30 gal each with a longer footprint/surface area than a standard 75. I would also double the filtration on that tank and be doing twice weekly 50% water changes.

The 45 gal corner tank is also a big issue. The clowns need to be in a group of 6 plus and a 125 gal minimum as well as the cat.

Looks like you have some serious upgrading to do with tank size or moving fish out before stunting sets in and causes stress and deformities.

[Emperor_400]

I would get more filtration for that tank, I recomend getting enough to turn the water over atleaste 10x an hour.

[trying]

Well I certainly don't want to harm my fish. I will see what I can do with the bala. The clown loaches I can move to the 75gal tank until I can upgrade.

I would say my orandas are close to tennis ball size. Why so many water changes for the orandas?

[Ghost_knife]

Common pleco's get 20+ inches the 4 I have are 19 20 22 24 inches. Taken last month during a pond dredge