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Why are you using both the waste and RO water together? You might as well just be using tap water...

RO/DI

The question is... Are you really prepared to change 150 gallons of water per week?

I never paid for the slides. A slide will accurately measure pH and ammonia for well over a month. The slides can be used for about 3-4 months without any loss of accuracy. The only thing you don't get are the text notifications, but you don't need those anyway if you install the Seneye app.

http://www.ukaps.org/forum/threads/seneye.31700/ Read through that thread

I have a Seneye Home. Don't get me started on it, but the slides are incapable of measuring pH in water with KH less than 5. They have been promising a "low pH slide" for over 2 years now, but it never materialises. My Seneye Home is just an expensive thermometer. It can't measure pH in...

Yeah it is inside the Juwel cabinet, but I can still hear it with the door shut. Just have to live with it I guess. It's not too bad, just sounds like the trickle of a stream like someone mentioned in the other thread.

Yep, like you said, the reactor is completely silent when the Co2 is off. When the Co2 is on, it makes a trickling noise. I'm guessing there is no way to avoid that.

It does still make noise after Co2 is off, but I'll have to double- check again after the Co2 goes off tonight.

I'm at about 2 bps right now, but I'm going to slowly increase it over the next few days to find that sweet spot. Increasing the flow to the reactor might be a bit difficult, the filter is already pretty empty. Also, it's a 1250 lph Eheim so I think it should be providing enough flow!

I was aware of the breakability of that Co2 nipple on the reactor, thanks for the tip. Yeah it's 16/20 pipework so fits perfectly. Just one issue. 24 hours after installation and it's still quite noisy. I have turned the reactor upside- down several times to release trapped air, and I have...

What do you mean "reached equilibrium"? My LFS has the Sera 500 for £22.50 so think I'm going to pick one up later today.

I'm basically choosing between the Sera 500 and the Aqua Medic 1000. Pros of the Sera 500: Won't kill flow as much as the Aqua Medic Cheaper Pros of the AM 1000: Better build quality Quieter (??) So basically the decision depends on this: How much more will the AM 1000 kill the...

Thanks. So you're saying that you prefer to use the 500 version, because it doesn't reduce flow as much? Any other reasons?

Thanks so much, I messaged him.

I would buy the Aqua Medic 1000. But asking £70 for a piece of plastic is just offensive.

The new style one (which you can take apart to clean the ceramic) is leaking from both ends, at the nuts which you unscrew to take the thing apart. They're as tight as they can be. It's pissing water out of my tank as we speak. The old style one developed a crack in the plastic, and started...

Well I hope your experience is better than mine. I'm thinking I'm going to pick up a Sera tomorrow. From what I've read, the Ista Max Mix is a "cheaper version" of the Sera. But should I get a 500, or a 1000, for my sized tank, filter lph, and bps?

Thanks for the reply. Is this the one you mean? http://www.co2art.co.uk/collections/diffusers-reactors/products/aquarium-co2-reactor-diffuser-multi-directional-max-mix-large-over-240l-tank

I am at the end of my tether here. Every UP inline diffuser I have ever owned has leaked. I'm sick of this now, and I want to get hold of an efficient reactor or diffuser that won't leak. Does such a thing exist? I'm looking at the Sera 500 or 1000...

Ok, let me add that I am not wanting to spend more than about £30 here. GW, I do not need 0.01 resolution. So then you reckon I should get the pen? Are meters that have an external probe (the first one) more reliable than pens, which have the probe built- in?

No-one?

I want an accurate pH meter/ pen so that I can carry out proper pH profiles. I am looking at the Hanna ones and I have narrowed it down to these two: http://shop.hannainst.com/hi98103-checker-ph-tester.html?id=040003&ProdCode=HI%252098103...

Just noticed a small (dripping) leak coming from the body of my UP inline diffuser. This one was already a replacement for one I had previously that developed a crack and started leaking! This one has no visible cracks; the leak is coming from the bit at the bottom of the diffuser where the...

So I wonder if tannins caused by wood/ cones/ leaves would render the device useless?

Yes. They are the same physical unit. The light upgrade is a software update that they seed to you only once your purchase is complete. No physical modification is needed.

John, This is the link to which the email refers: http://answers.seneye.com/en/water_chemistry/what_is_pH/effect_of_ionic_strength_on_PH_tests

makes me so angry that they charge you $78 just to unlock the light meter features that are already inside the device... My Seneye Home is already a PAR/ LUX reader. In order for me to actually see those readings, I need to pay an extra $78. Any expert hackers on UKAPS? ;)

Correction: Here's the email they sent me a couple of years ago. Hi Sacha, I think that we may have send this to you before, but in your KH level of 5, all pH measurement methods will struggle to read consistently. The link below explains this in some more detail. There is of course...

Presumably they've given up on the low pH slide? Run out of money?

It's 5 or 6. That's the minimum. I have been told it struggles at "less than 7" The slides only need to be renewed for text alerts. I haven't changed mine in over a year.

Yes I do. But I also run the 1000 lph internal pump alongside the APS. You'll see from my other thread that I am getting rid of my APS for a better filter. Their lph is just pathetic IMO.

I have an APS 1400 in the same tank (125) and the flow is much weaker than yours in that video.

Fair enough, but you are still wasting water and there are reasons other than money for why you wouldn't want to do that. We are on a meter though.

I worked out that the cost of a pump was actually cheaper than the cost of the water that you waste with not having a pump. I used to get a huge amount of waste water, now I get very little.

To avoid this, you can just unplug the plug from the timer

Like I said in the other thread, for the last two (?) years or so, they have been promising: 1) a low pH slide 2) more parameters like nitrate and chlorine. All of these things are "coming next quarter". They have been coming next quarter for the last 7 quarters, so I'm not holding out...

I had pretty much the exact same experience as you mate. They know they've screwed up- I could tell from the way they were acting. It really should be made clear before you buy the expensive bit of equipment that it is actually incapable of measuring pH in soft water.

I want to remove a large scratch on the inside of the tank. The problem is, I am not able to remove the fish from the tank, not even for a few hours. So this will have to be done during a water change. Is it possible? Is cerium oxide harmful to the fish if it gets in the water?

Can you elaborate on how to remove scratches using Cerium Oxide? I have a big scratch I want to remove.

Iain, in that case- what would you put in my filter?

True. But it's an annoying job as it means disconnecting and reconnecting hoses etc. I don't like messing with my external filter. I am still recovering psychologically from a traumatic experience in which I emptied half the tank onto my carpet, through the external filter hoses.

I would absolutely love to do this if it works properly with my filter. I use an APS 1400 lph external. In the bottom tray, I have a blue sponge and bio balls. Middle tray- ceramics. Top tray- poly pad. I am using about half of the media that is recommended, in order to increase flow. My...

Apparently that's not good for two reasons... First, the bacteria in the filter don't like Co2, they like oxygen. Second, people report that the gas doesn't flow through- what happens is that a huge gas bubble just builds up underneath the bottom media tray, and eventually all comes through...

I use the UP Aqua inline atomic diffuser. I don't like the fact that during the Co2 on time, the tank is filed with loads of micro- bubbles. The tank only really looks its best after the Co2 turns off. Is there any way to eliminate/ reduce the bubbles? Would increasing the pressure on the...