Questions - Need some input

Ok so the lady brought home the "75G tank" which actually turns out is the same size as my 55 g.... so its a 55 g.... anyway not to bad condition there are some scratches on it and it appears that the bracing on the top has some small cracks but still in tack.

I filled it with water outside to test it and the top seems to hold fine but there is obvious bowing in the middle of the front and back panes.... Is this normal for acrylic? Never owned one but assume since its plastic ...

does anyone have some suggestions for reducing my Ph, it's 8.9-9.1 comming from my tap water. it's already killed all of my anemones. would a calcium reactor help to keep it down. i don't want to have to keep dumping chemical in the water if i don't have to, but i'm stumped at what to do. obviously more water changes don't help. thanks

o I have the 55gallon freshwater,

im working on a 55gallon salt water tank now

I also had a 5g tank that was for a quarantine tank.. but the woman called and said set it up I am bringing something home.... ok

SHE COMES HOME WITH 3 GREEN SPOTTED PUFFERS!

I cant put them in my 55 g freshwater cause they will terrorize the rest so they go into the 5 gallon for now.

The woman today finds a 75 gallon used acrylic tank for like $40.... ...

So I have to admit I did not buy a RO/DI from Melev, but to my defense I bought mine before I knew he sold them.

But I have some questions.

So I am thinking I will put the unit in my garage, and use trash bins or the like for storing the water. One for waste and one for pure.
Now my thought was to have a float valve control when the ro unit stops producing water so I dont flood the garage. I didnt know at first but most units produce 2-4 times the amount of waste ...

I got the final OK to re-quote the tanks (sump and display). So now I'm starting on the process of approaching each and every company on my list for a new quote for the tanks. The goal is to have both tanks in the house before the holidays, so we're leaving a lot of lead time to get those panes of 10.5ft glass. I have 5 places to get quotes from now; all glass, and there is now even a guy who I've heard (through the grapevine so it needs to be confirmed) that will warranty his work!

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