Really you need to go back to the drawing board with this one. People on here have given you a lot of good advice which you have ignored and dismissed. The tank might work in the short term but long term its going to fall over and you will probably lose everything. People aren't saying these things to have a go at you so don't take it so personally. they are saying these things so that you can have a healthy, trouble free fish tank that you will be able to enjoy for years to come.
Your current fish list:
4 Angelfish,
28 Tetras (various species)
2 Pearl Gourami,
8 Corydora
1 Rainbow shark.
4 CELEBES RAINBOWFISH
2 KRIBENSIS
5 CLOWN LOACHS (SMALLEST FISH IN MY TANK, BOUGHT SOME BUT WILL BE MOVED INTO LARGER TANK WHEN 3.5 INCHES)
2 SIAMESE ALGAE EATERS
So a total of 52 fish. This is too much for a 120l tank.
4 Angel fish - These will end up fighting. Wait until you get a pair form from them and rehome the other two.
Tetras - I would say these are fine.
Pearl Gourami's - again I would say these are ok but ideally need a bigger group of around 4 (and you REALLY dont want to add more fish in here).
Corydora - These are ok.
Rainbow Shark - Your tank is too small. Period. Rehome it.
Rainbow fish - Dont know much about these but provisionally ok.
2 Kribs. Generally not a good idea with angel fish once they both start spawning (if they dont all die first) there is going to be a lot of aggression in a small tank.
Clown loaches - Your tank is too small, take them back or rehome them. You will not be buying a bigger tank for them. You either can not afford or can not be bothered to get an external filter for this tank so there is no way you are going to upgrade to a tank big enough to keep these.
The algae eaters - As noted above they can become aggressive and generally I wouldn't recommend them.
What I would recommend:
Keep the tetras, cory's and the angels. This is pushing the boundaries for stocking levels in that size of tank as it is. Once two of the angels have paired off keep them re-home the other two. get rid of all the other fish, most of them aren't really suitable for your tank.
If you want you could swap the angle fish for the gorumis (and get two more) or you could swap them for the kribs.
Definitely get an external filter or at least another internal filter. Even if you go with the stocking list I put above you are pushing the stocking levels and I wouldn't rely on one filter to do the job long term.
Just because your fish are small now doesn't mean they wont grow quick and "selling them when they are big" is not an option. Don't give us this crap about the fact that they cost you money and your not going to just going to give them away. If you had listened to the advice in the first place you wouldn't have bought more fish and if you had done even the minimum of research first you definitely wouldn't have bought the clowns. In this tank most of your fish are going to end up dead anyway so is it not better to give some of them away anyway.
You are just setting yourself up for a lot of hassle and dead fish in this tank so PLEASE take on board some of the advice you have been given here.
If you don't want to listen to the advice and want to just continue trying to justify a pretty cruel stocking list then just don't bother posting about it any more. Most of the people on this forum are here because they love fish and seeing someone who treats them in this way annoys even the best of us. We ALL make mistakes and I would say 99% of the people on here have made poor decisions in the past when stocking a tank. However the difference between someone that actually cares about their fish and someone that doesn't is that if you care you will listen to the advice and do something to fix the mistakes you have made. At the moment you are just coming off as someone who doesn't give a crap about the animals you are keeping and that just gets everyones backs up.
