Types Of Fish

[rdx200]

hi im new here at this form and would like some help with what fish i can keep the type of fish i want to keep are some catfish discus eels tetra sharks and angles types of fish like this i used to keep red bellied piranha but just got back from holidays to find my 3 7" piranha dead not to happy with my mate who was looking after them the water was realy cloudy

ammonia 0.50 ppm
nitrite 5.0 ppm
nitrate 160 ppm
ph 6.8

so i have just cleaned the tank and filters and starting to cycle my tank again here is my set up so any advice you can give about what fish will be safe to keep with each other would be greatly appreciated

tank size
60" long 20" wide 18" high and holds 93 us gallons

external filters
fluval fx5 , fluval 203

1 802 powerhead that sits at the top corner of the tank i have no plants just bogwood and black gravel

 

[Tokis-Phoenix]

Hi and welcome to the forum .
Some of the fish you have mentioned cannot be kept together or are not suitable for cycling tanks, while others there are too many types of them to say (there are hundreds of types of shark-type fish, eels, tetras and catfish for example).
Can you be more specific on what sort of tank you are aiming for? Like an oddball fish tank, with a couple of large centre peice fish, or a community tank with many small schooling/shoaling fish etc? Are you aiming for a heavily planted tank or the opposite ?

There are many things to take into consideration when stocking for fish, for example here are a few important factors you need to take into consideration;

a. How big does the fish grow? Is it going to be outgrowing my tank at any point?

b. What are its activity levels like? Is it going to need lots of space to swim in, or is it going to prefer spending its time dwelling in caves or grazing algae etc?

c. What are its social requirements? Is this fish happiest in a group, or does it prefer to be alone? Is it agressive or peaceful, territorial or not etc?

d. How fragile is the fish? Is it going to get ill in a cycling or newly established tank, or will be it be hardier enough to thrive in such conditions?

e. What habitat does it need? Does it prefer to spend its time dwelling in heavily planted area's of the tank, or will it prefer to be swimming about in a sand substrate- or is gravel better for it etc?

f. How much waste does the fish produce? Are you going to need some pretty hefty filtration and be doing loads of large regular water changes or substrate cleaning sessions, or is the fish going to be fine with adequate filtration for the tanks gallons and normal tank cleaning regime?

g. What does it eat? Are you going to need to be making regular visits to your lfs for live food like feeder fish or bloodworms, or is the fish going to need a regular suply of veg and algae? Will it be ok on a fish flake or dried food orientated diet etc?

h. What temp does the fish thrive best in? Does it prefer more sub-tropical temps, or will it do better in warmer tropical temps?