lost some fish!!

[kamdogg]

I just lost 3 fish, I just got some ph stabil. put it in the tank 3 hr. the fish are dead anyboby have any thoughts?

 

[carrie1429]

How old is your tank and what are your water parameters?

 

[kamdogg]

Its a 50 gal tank, 20 p of lr. 3 inch live sand. under water filter 2 whisper 2barrel filters with carbon. 2 power heads. normal light.
water ph-76. alkal 1.5 nitrate 10 nitrite 0
i use ro water.
the ph dropped so i bought some seachem marine buffer and it said to add 1 tsp for every 20 gal everyday until ph is to 8.3 so i added 1.5 tsp . and i lost almost all of my fish. i still have grupper and some crabs and snails.

 

[jimnaoum]

did your ph stabalize? I had that problem (similar at least) A while back when i had my old 40 gallon. I guess if your ph stays higher, and I mean stays there you shouldn't have that problem.
now for my dumb question, i had a strong metal stand with my old setup, but i got this beautiful wood stand with cabinets now with my 66 gallon. Will it hold my new aquarium?
what kind of stand do you have?

 

[kamdogg]

yes, the stand will hold hopefully its an oak stand they are really strong. I have an oak stand and its is with my tank and rock and all the stuff weights about 2100 pounds. i went to some web site it asks for all your stuff and tells you what it weights. serch for it