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If its mechanical, it's usually one of two things, either the air is being blocked by something, or the water discharge is being impeded by something. When was the last time you had it out for a good cleaning?
I remember party lines, at the time we had an old box phone. It didn't even have a dialer on it, you had to push the cradle a few times to get an operator.
You could clean it, which would entail bleaching overnight to sanitize it, and remove any unwanted algea and then etch it in a vinegar/water bath to help remove any PO4 that may exist in the outer layers of the rock. If you work at it that should take about three days. After that I would let it...
It's now up to $100.00 for the 20Kg box. Doing the math, that's about $.75 per gallon.
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Frag Lotto: We will also be conducting a "Frag Lotto" where you bring in up to 3 frags (optional) and trade them for a raffle ticket. When your number is called, you get 1 minute to select a coral from the frag tank as a trade for the one you donated. We've done this in the past and it is a...
The pellets take it one step further in that they also provide a food source(carbon)for the bacteria. I would look for rock that is made up of dead coral, i.e. Pukani, Fiji, Tonga, etc. Some rock (any) may have some elements/minerals in it you don't want to introduce into your system.