My female neolamprolgus multifasciatus has developed a pink blob on her underside. It is about the size of a grain of rice. She may have spawned recently and I know that can cause the vent to swell but it looks awfully large for her body size. She is a bit quiet and not feeding very much but otherwise she seems fine. I worry that an egg may be stuck in the tube.
I have had the fish for 10 days in a 30 gallon tank (2 juvenile calvus + the pair of multies). I have done three 15% water changes since getting them. Before the last water change the parameters were:
Thanks for the advice. I think you may be right about the prolapse. Would a large dose of Epsom salts affect my two Calvus, it will result in a very large gH right? I have read that they are sensitive to changes in water properties?
Could I try putting her in a bucket of tank water with added Epsom salts for a while. I don't want to stress her out though. I wish I had a hospital tank.
I could not afford a hospital tank. I have been gradually adding epsom salts to the tank so as not to upset the Calvus. The gH is now 25 and I will carry on until it is 40 or so. However, my female n. multifasciatus is no better. The blob is the same size although she seems ok and is feeding fine.
My LFS recommended an antibacterial treatment, myxazin (active ingredient malachite green). I am bit wary of using this as the tank is new and I don't want to the upset the nitrogen cycle (which is working great). The multies also have eggs and I worry that it might harm them.
I am definitely going to try setting up a hospital tank in future because it seems like a very useful thing to have. However in this situation it may not help anyway. The female multie lives in a barnacle cluster probably with eggs inside. I can only move her by moving the whole cluster which I think will leave the male a bit freaked out.
I now think that the female is not egg bound only prolapsed. She does not look swollen (she did before prolapsing) and she is eating well. I think she released her eggs but perhaps prolapsed in the process. I have found one egg.
So two questions:
Will the Epsom salts that I am adding harm the eggs? The one I found had floated up to the top of the tank (I have now put it in a net partition to keep other fish away). It seems odd that the egg should float could that be because the Epsom salts have made the tank water more dense?
Should I treat the tank with the myxazin (malachite green)?