Questions - Need some input

Here is my pH and Temp





Any input?

I was thinking about taking the plunge and getting 1 or 2 ofthese for my tank. Question is would it be better to do 2 MP 10 or 1 MP40 on my75 gallon? Any input is welcomed. After the power going out twice last week would like to have a better plan than what i have now.
Thanks Chris

I have been looking at both of these products. I wanted to get some input and see what is the best decision.

Have you ever watched one of your fish slowly waste away and there was nothing you could do about it? That's happening to our lawnmower blenny, who is our system's oldest fish. He is one of only two fish, along with a clown, who has been there through all three tanks over the past 4 or 5 years. He's always been extremely active, constantly eating, and very outgoing. His belly has been full sized his whole life. Last week I looked in the tank and he's suddenly skin and bones, like his stomach ...

we are wanting a ~60 gal cube tank for a seahorses. do we need an overflow type setup or can i get by with just hang on filter and skimmer? it will be a live rock and seahorse only tank, plus CUC. any thoughts?