Hey guys and girls! My name is billy and this is my first post here and my first problem heh.
This is the first fish tank ive owned other than a little one when i was younger that my parents pretty much took care of when i was a kid.
My girlfriend and I thought it would be a nice addition to the Living room if we put a fish tank in one of the corners that was not being used this is the specs of the tank.
20 gallon tall
Whisper Power Filter 20 gallon
Wisper air pump 20 gallon
TopFin 100wat 20 gallon submersible heater
Some plastic plants (5 i think)
and two things to swim/hide in. one is part of the colosseum and the other is a fake clay pot that had broken pieces that they can swim in and out of
also a 18" buble wand across the back away from the filter intake so the filter isnt sucking in a lot of bubbles
i also used Topfin aquarium Graval (two 10lb bags because it said 1lb per gallon)
i also bought a digital thermostat
i used tap water conditioner two days before we bought the fish and the guy at the fish store (i didnt goto walmart to get the fish i went to a standalone store that does fresh and salt water fish) told me to get TLC for freshwater Aquariums
i put that in the tank about a day before i got the fish
i did what i think is the proper way of getting the fish use to the water before putting them in the tank, set the bag in the water for about a hour then took it to the sink and slowly added water from the tank into the bag .
after that i took the fish out of the bag with a net one by one and added it to the tank
the temp has been at a steady 77 degrees
but today when i woke up the tank was really cloudy (by my standers its prolly not that bad though heh).
Here is the fish the man told me would go together good for my tank size:
2 small oscars (one albino one black)
1
Firemouth
2 Parrot Cichlids (i thought they were parrot fish i was wrong)
3 cichlids
one cichlid looks like this:

the other two look like this:

1 Pelco (i think) here is a picture i took of it yesterday:
here is a picture of the tank i took just a minute ago:

(date timestamp is a bit off on the picture heh)
I was hoping that if i went to a Store that specialized in fish i would get much better advice being a first timer but now I think I might of not got what i was looking for what do you guys think?
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-= QUESTIONS =-
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Is this a normal tank cycle or something i should pay close attention to?
How soon am i going to need to upgrade my tank size?
Also i read to take out 20% of the water in the tank every week to add fresh water, if i do this how often should i do a full clean and replace all the water?
EDIT: now that ive found more info on this cycle process are all my fish going to die?!?! the guy at the fish store said nothing of this when i told him i set it up 2 ago!! man this is upsetting is there anything i can do other than hope they make it through? :( :( :(
Thanks for the help in advance and i look forward to chatting on this forum!!