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This is awesome!

calicali stag oregon tort red planet yellow hammer Aussie gold torch

I have had my reef tank for 15 years now, with no controller. During that time, I have had several crashes or minicrashes, where corals get badly stressed and some or many die. Most crashes have been due to equipment malfunction, often clogs in dosing lines and dosing pump or line failures that...

A cheaper thing you could do is just to take out a liter of your tank water, spike it with your phosphate additive to 10ppb or so, and then measure that. If it gets that right, then I think your hanna is working fine.

My tank also has tended to go to zero nitrate, so I dose plain sodium nitrate. I dose an amount that adds 5ppm nitrate per day, which seems to keep my nitrate more or less steady at roughly 20-50ppm by the salifert assay kit.

Hi Paul thanks for posting this! I am going to build one. What size silicone tubing do you use with it?

I had them, I think it was Ostreopsis. I tried raising nitrates, lowering the time that the lights were on to about 6 hours a day and also decreased the intensity, and doing mechanical filtration, and using a UV sterilizer. They gradually went away, so I don't know which of those things, helped...

I dose B-ionic parts 1 and 2 at 35ml/day in my 50g system. Dose is split, so each part gets 2 doses at 17.5ml/dose. They are dosed 1 hour apart. I find that dosing a larger amount at once leads to more accurate dosing by my dosing pump, because it minimizes the effect of backflow. In the past I...

Maybe there is a tiny hole or two in your locline return tubes? This would let a tiny stream of air get sucked into the return flow, and cause mircrobubbles. You could test this by replacing those with standard tubing and see if the issue goes away.

That thing looks awesome! I want to build one so I can use it for detritus cleanup. Thanks for posting this.

I have a inkbird temperature controller hooked up to a pretty strong fan that blows across the surface of my tank. It's a cheap setup and it keeps the temperature in a safe zone. I do have central a/c though, so the temp in the house rarely gets above 80.

That is nuts! I would have never thought that was possible. Were the lights out when the chromis got eaten? Just wondering since cardinalfish can be more active at night, and it might have an advantage then. Otherwise, I would think that chromis would be a million times faster.

Yeah, I reduce dosage after the algae goes away. But after nutrients become undetectable and the algae fades away, then I have to start increasing nutrients again, so the corals can get healthy. At the level of feeding that I do, which is adequate but probably a little below average compared to...

I recently used vinegar dosing to get rid of an algae outbreak. I have used it on and off over the last 10 years to lower nutrients. Works best at 1 ml vinegar per 2 gallons tank volume. I think it is the easiest and most effective way of lowering Phosphate and nitrate . I even starved out...

It took over my tank a couple months ago. After falling behind in the manual removal, and the turbo snails preferring other stuff, I used fluconazole, and followed the general advice (no skimmer or carbon). It mostly disappeared starting at about 2 weeks, and it has stayed at a very low level...

I have also really enjoyed the Reefbum interviews - have learned so much from them. And I also second the Coral Euphoria recommendation for some really creative and informative videos.

This was the lid/light holder I designed and printed for my 5 gallon refugium.

I printed a lid for my refugium which is about 10" wide (wider than my printer can print) - had to print the lid in sections that slid together. The lid fits my tank and hold my lights perfect, and is customized for the space under the main display. The cool thing is, that once you make it, you...

Hey Dong, awesome display! Since you have had so many BTAs for so long in the same tanks, can you give any opinions as to what stimulates their bubbling behavior? I know that nobody has it all figured out yet, but I am sure you must have made some observations in your tanks and have some ideas.

I think it is a type of worm that protrudes its tentacle thingy from rocks where it hides. When food/prey sticks to the long tentacle, it reels it in. It doesn't look like a comb jelly to me. I have seen those at the Monterey aquarium, and they are generally larger (like golfball size), free...