Hi, first off I'm new here. I have something I would like some experienced opinions on.
I'll give my tank specs first and then tell my situation.
75 Gallon Fresh Water
2 Whisper 60 gallon Power Filters
Under Gravel Filter
2 Maxi-Jet 1000's
1 Red Tail Shark
1 Rainbow Shark
1 Zebra Botia
2 Clown Loaches
2 Golden Rams
1 Black Swordtail
2 Common Plecs
A little Elodea and cobomba(not much)
1 fairly large Amazon Sword
2 smaller plants (I"m not sure of the name)
pH - 7 (tap is 7.2)
KH - (4 DKH) (tap is 6 DKH)
GH - N/A
Nitrate - 40 (tap is 0)
Nitrite - N/A
Amonia - 0
Temp - 78-80 always
I've had this 75 gallon tank about 10 years. Most of the time there was a red-tail shark and yo-yo loach. They got really big and lived for about 8 years. But most of that time I wasn't living at home. My cousin was taking care of the tank for me.
I just moved back in and the tank was empty except for the 2 plecs. So one day I went by the fish store and left with the sharks and clowns. I kept checking the ph and ammonia and they were always PH 7.2 and ammonia 0.
So I thought everything was fine and got the other fish too.
Little did I know my cousin had NEVER done a water change. He would just wait for the water level to go down then add some more. He NEVER took any out for 7 or 8 years. So, I went out and bought a Nitrate and KH test kit, but the store didn't have Nitrite and GH. I'll get those soon as I can.
Anyway... How much harm could not doing the water changes have caused. And are those water parameters ok, or do I need to seriously work on anything?
Thanks in Advance!!!