Was not aware of these "refills", calibration fluid?
The slides only last a month Paulo, I think? Theyre about £18 for 3 months worth. so £6 p/m.
He probably means that you have to pay for the replacement slides...
sure it's a bit of a downside but in my opinion it is well worth the money to have accurate readings without having to dig out a test kit which, after a couple of month, may not even be that accurate anyway...
hmm, I don't reckon there's a strong enough need for one to warrant the price tag. I forgot I turned my heater off the other day, didn't realise to the next day, and my house is COLD. like Room temps of about 15-16 degrees at times. All fish were fine, but water was like a cold bath to the touch.
Ammonia - use your head. if your overstocked then your asking for trouble. Managed feeding and good routine will get over the need to 'test'. if your setting up a new tank, put your substrate in and leave it a month before lightly stocking and using common sense to increase. I imagine the BOZO on eBay I've just sent a message to had a ammonia problem with an ANGELFISH in a 30litre biOrb. I wouldn't advise him a 'Seneye Reef', I'd rather offer him a brick to the head.
PAR is of use to be fair though! I quite rate that feature, but I imagine just off the pure fact that PAR meters are so expensive that this could be sub-standard or inaccurate?
Float alarm - If your at work and your tank bursts, 9/10 your fish will all be brown bread before you get home.
Just can't weigh up gains to costs, although its very much each to their own.
I also wouldn't turn down having a go of one.