Maximum water change amounts for fish are all about how different the water is: if you exactly match temperature, salinity and pH you can change as much as you want, 100% if you can logistically do that. You do need to aerate the new water long enough to stabilize the pH. The issues crop up when the water used for changes differs too much from the water in the tank. That said I usually stick to 50% changes, doing 2 a day if need be.@Jay Hemdal
api kit. Headed to LFS now to buy the Hanna checker. I will get some more bacteria in a bottle for both. I can pull the sponges from my 90 reef and place in the 150. Both using same, but separate units, trigger sump. So it’ll fit in well. I have an 8.3ph on eel tank. Two are eating well but absolutely no activity. One has not eaten yet but extremely active. He wraps around the stick as always gets excited but then swims without eating. Tried all his favorites plus some other all gripped no garlic.
will go to lfs now and treat/test and get back to you with results.
oh, how many water changes too many? I’ve got salt for days on end but been too afraid to do more than 40-50% daily.
Jai
Your filter sponges should help though….
Jay