I've used these in all of my tanks that need heaters. The Tetra Submersible heater, 200 watt. I only had FW tanks, until around last Christmas. When I bought the dragon goby at lfs, not realizing it was a brackish fish. Anyway - got much needed advise here, and dragon goby is doing fine now.
My problem/concern is that the black paint on the heater is coming off! When I clean of the inside of the tank I use a large all-plastic brush to get the sand off of the heater. The goby likes to re-arrange it's sand castles and caves, it's tail really kicks up a sand storm! So now I noticed some large (about 1/2 cm) pieces of black paint floating in there, and more came off when I was cleaning! I managed to net the larger pcs.
I'm worried, since it's a sifter-eater, that it might damage its' gills? I don't have a spare/different heater for that tank either. WHID?
My problem/concern is that the black paint on the heater is coming off! When I clean of the inside of the tank I use a large all-plastic brush to get the sand off of the heater. The goby likes to re-arrange it's sand castles and caves, it's tail really kicks up a sand storm! So now I noticed some large (about 1/2 cm) pieces of black paint floating in there, and more came off when I was cleaning! I managed to net the larger pcs. I'm worried, since it's a sifter-eater, that it might damage its' gills? I don't have a spare/different heater for that tank either. WHID?