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After doubling my feeding regimen, cleaning my macro algae reactor thoroughly and inserting a newly acquired batch of chaeto, I started my reactor again. That was over a week ago. The ball of chaeto...

Thanks for your answer. I'll do that.

Just to add... I just checked my NO3, and it is now completely undetectable with my test kit. But my PO4 remains at 0.03. So there is also an imbalance. I'm...

My 130 gallon reef has been doing great for over 13 years now. It houses LPS, SPS, some clams, softies 6 different doctor's fish and a plethora of smaller fishes. But my nitrates and phosphates...

Still, even with the more powerful light and the correct spectrum, the chaeto still won't stay alive. I've restarted with fresh batches 5 times now. Meanwhile experimenting with lighting period and...

No, I meant the plastic of the external media reactor, wouldn't that crack? Just like the light tunnel of my reactor did?

Btw, have these been known to crack also? Because, on second thought, this just might be a much better option for me after all...

I have a reactor that stands in the sump though. The water passing through the reactor just flows over the edge and down the outside again. So, that's not a possibility for me.

Just thought you'd like to know that you were absolutely right. The Chaeto is growing very well now. Almost doubled in only a week time! Even though I'm only turning on the lights when I'm at home...

Any tips on how I can prevent this in future? (When my replacement light tunnel arrives.) I was thinking to increase the flow through the reactor so it cools better. From 700 liters an hour to 1500...

So, my 660nm red light strip finally arrived two days ago. I immediately installed it and put in a fresh batch of chaeto that I got... The next day I discovered that the central tube of the brand new...

One more question... Would lighting the Chaeto 24/7 make any difference whilst spanning the time needed for my order of red 5 watt leds to arrive?

Many thanks! It's very easily replaced in this model reactor that I got. The center is a hollow tube in which different types of string lights can be inserted.

Two weeks ago I received my chaeto reactor with chaeto start culture. (Ultra Reef Algae Filter) And I immediately started it on a 16 hour cycle, opposite to the tank lights.

The problem is that...

Has anybody tried using the HOG5 with a little water pump instead of an airpump yet? If not, then I'm going to!

I've been using two HOG5's for 6 months now. The noise from the bubbles and air pump...

In the past I've tried to keep those really colourfull bright blue sponges a couple of times. First when my tank was Berlin only, and a second time when it was on the ZEO-method. I figured I would...

I add Zeobak to my system two times a week. (Paracoccus Denitrificans.) And the screen on my three month old scrubber has always been freakishly bright yellow. Then could those bacteria be the reason...

I got a sump without baffles. (An old fish-thank.) It has the return pump, heater, skimmer, zeo-reactor, a scrubber and two streamers blowing the bottem clean. Nothing settles anywhere in my setup.

Like I said, either patience and waiting untill the excess phosphates have been processed. Or accelerating the processing of phosphates by adding nitrate. Mostly done by adding PotassiumNitrate,...

Yes, I'm skimming very wet as advised in the Zeovit method.

Sorry to jump into this discussion, even though I'm fairly new to scrubbers.

I do have 7 years of experience with the Zeovit method though. And the theory that P gets stored in the rocks has been...

What's a fts? Dit I place it in the wrong section? Sorry, if I did!

I've been running a 500 liter tank now for 5 years. It is very well stocked with SPS, LPS, softies, filter feeders and a modest amount of fish.

The nutrients are being kept very low by a...

OK, so now my new HOG5 has been running for 14 days. The growth isn't very thick and VERY dark green/brown. Is this still normal startup behaviour? And should I clean it? Or go for another 7 days?

Ok, I got and installed my HOG unit 7 days ago. Now, for the first time, I see some algae growth... Should I clean this? Or should I let it grow and clean it the next time when there is some solid...

Thanks for explaining this! Makes lots of sense.

I have the top out of the water. The bubbles inside the unit still make lots of sound.

The algae needing Co2 does make sense. But wouldn't the water itself contain enough of it? Other algae turf...

My HOG5 just arrived. All genius ideas are simple, and this one is too. And brilliantly worked out.

Only thing is... I can't get used to the bubbles. It's really loud. Has anybody tried it with a...

Thanks for the quick reply. Can't wait until it arrives.

I just ordered the HOG5. Brilliant idea!! How much airflow is supposed to be provided to the unit?

Magic! I'm looking forward to it!


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I realise that yes. I will not be able t judge this system at all based on my findings. But that's ok. Just want to see if the nutrients/pods added by...

I'm very interested in this project. I've been trying to shoehorn a DIY scrubber in my sump for some time now. No luck yet. I want to use ZEO and a scrubber next to eachother. So a smaller design...