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Relax. Most analog thermometers are alcohol nowadays (and have been for some time). If the liquid was red, it was alcohol, nothing to worry about. if it was silver in color it could be mercury but most likely is galinstan if it was made in the last ten years or so. if it was truly mercury...

A couple of other things to note, you will need a lot of cooling capacity as they really thrive 55-60 degree (Fahrenheit) water. Also, heavy lids would be a must as they will jump whenever they see water entering the tank (they think there's a pool on the other side they need to get to).

if it was the banner ad under the header, those ads are often chosen based on other sites visited on the computer https://choice.microsoft.com/. if your the only one who uses that computer, it may have misinterpreted your history, in which case if you can opt out of personalized ads on the link...

I don't know about the legal issues of keeping native fish in Washington (although generally if you can legally catch it you can keep it however you wish). whether they can survive and thrive will depend a lot on the species and the pond. To get a good answer you will need to know what...

Non fish related pics

You probably have a leak between the cap and tubing (you can check this by closing the end of the tube, applying soapy water at the connection, and squeezing the bottle. If the soapy water bubbles, there is a leak). if this is the case, use a bulkhead fitting used for R/C planes (like this...

most places sell a universal bit extension that you can insert whatever bit you need into. something like this.

Are they actually floating or are they being pushed up by the sponge underneath it? If the sponge gets clogged with debris the water sometimes can push up the sponge, which in turn pushes up everything above it (in this case your ceramic rings).

if you are really concerned about the water warming as you take a shower or the water hitting the glass stressing the fish, you could use double pane glass particularly on the inside walls/ It will provide insulation from both heat and vibration like a double pane window

Your problem is probably elevation. whats the difference in height between the water level in the problematic tanks and the sink adapter? also, is it problematic from the start or does it just get bad after removing a certain amount of water? Cliff your idea is helpful but not for that...

have you used Melafix in your tank recently? It has a very noticeable peppery smell to it. if so, a water change should get rid of it very quickly. It could also be something else that has been put in the tank (medications, something a little kid put in the tank), in which case a water change...

If you really want the fish to have that "glowing" look to them make sure to use a fluorescent black light as they produce ultraviolet light which creates the "glow" effect, and incandescent (the kind with a filament inside) bulbs do not.

Overall a good design, most in-tank reactors have a similar design. I would suggest you get rid of the sand since it will settle into the filter floss overtime and potentially restrict flow.

The most important thing with freshwater chemistry is stability. So long as the fish are properly acclimated they will adapt to the conditions with no problems (my family has had tropical fish in water with a pH of around 8.0 and hardness nearly double of what you have for well over 20 years...

any reasoning for KNO3 over CaNO3? is it to avoid having to dose a sperate chemical for K? it looks like I'm all set, so when I get the chance I'll order the ferts and lights and a few other things. should i be dosing to the target levels suggested by the dosing calculator or should i dose a...

Ok so If i go through with the lights I plan to get the following fertilizers from aquariumfertilizer.com: -Mono Potassium Phosphate -Potassium Sulfate -Calcium Nitrate KH in my tank is 25dKH (lots of limestone bedrock locally) and 8dGH. pH 7.8, NH3 and NO2 are 0. I Think the ferts...

just the comprehensive, not the whole line of products. So even at 3 WPG I should be dosing macros (N,P,K only or iron as well?)? currently, my tap water is running almost 10 PPM from the tap and is at 25 when i do a bi-weekly water change, and I don't have a phosphorous test kit but plan...

Thank you for the help! I figured beforehand that with even 4.5 WPG (one 10000K and a 50/50) I would need to go pressurized. Just to clarify on the ferts I'm using just flourish not Greg Watson or anything of the like.

I've been enjoying my low light tank (20W NO over a 29 gal) for quite a while now, and I am considering stepping up my lighting. My plan is to get a double 65W CF fixture and for the time being running just one daylight bulb (10000K) until I have the time and money to commit to a high light...