I am new here and would love some advise please, I have had a tropical aquarium now for about 18months. It is a 2ft tank, I have a heater, light, air etc. water is checked regularly for ph levels. The pet shop will check my conditioner level every now and again.
I also change the water about once a fortnight, that is a 1/4 capacity change, not a full change of water.
I have a suction thingy that cleans the bottom of the tank, the gravel etc, then I top up the tank with fresh water, yes always pre tested and warmed.
I have 3 fish in there, 1 is a sharkcatfish, 1 a black widow and the other an angel fish.
I have had various varieties, but invariably they all seem to die. Gosh that was a mouthfull. lol.
Ones I have tried....betas, red tailed shark, neons, guamis, swordfish, mollies, normal catfish, tetras, to name a few...Not all at once though, the most I have in the tank at any time is about 10.
This last time I had 6, they were happy together for about 2 months, then the sword fish died, followed by the red tailed shark then two days ago the guami.
Why is this happening. I go through the same process every time..get a couple of extra fish, all goes well then all of a sudden a few die, and not necessarily the new ones.
How many can I keep in this size tank? I love to watch them, but I am put off buying anymore now as all I seem to do is kill them.
Please help.
I also change the water about once a fortnight, that is a 1/4 capacity change, not a full change of water.
I have a suction thingy that cleans the bottom of the tank, the gravel etc, then I top up the tank with fresh water, yes always pre tested and warmed.
I have 3 fish in there, 1 is a sharkcatfish, 1 a black widow and the other an angel fish.
I have had various varieties, but invariably they all seem to die. Gosh that was a mouthfull. lol.
Ones I have tried....betas, red tailed shark, neons, guamis, swordfish, mollies, normal catfish, tetras, to name a few...Not all at once though, the most I have in the tank at any time is about 10.
This last time I had 6, they were happy together for about 2 months, then the sword fish died, followed by the red tailed shark then two days ago the guami.

How many can I keep in this size tank? I love to watch them, but I am put off buying anymore now as all I seem to do is kill them.
Please help.